CN116581575A - Disposable plug structure, electrical connector and endoscope - Google Patents

Disposable plug structure, electrical connector and endoscope Download PDF

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Publication number
CN116581575A
CN116581575A CN202310864190.0A CN202310864190A CN116581575A CN 116581575 A CN116581575 A CN 116581575A CN 202310864190 A CN202310864190 A CN 202310864190A CN 116581575 A CN116581575 A CN 116581575A
Authority
CN
China
Prior art keywords
insertion hole
plug
elastic piece
axially
abutting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202310864190.0A
Other languages
Chinese (zh)
Other versions
CN116581575B (en
Inventor
周震华
唐鹏
周冠华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hunan Vathin Medical Instrument Co Ltd
Original Assignee
Hunan Vathin Medical Instrument Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hunan Vathin Medical Instrument Co Ltd filed Critical Hunan Vathin Medical Instrument Co Ltd
Priority to CN202310864190.0A priority Critical patent/CN116581575B/en
Publication of CN116581575A publication Critical patent/CN116581575A/en
Application granted granted Critical
Publication of CN116581575B publication Critical patent/CN116581575B/en
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00064—Constructional details of the endoscope body
    • A61B1/00103—Constructional details of the endoscope body designed for single use
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00112—Connection or coupling means
    • A61B1/00121—Connectors, fasteners and adapters, e.g. on the endoscope handle
    • A61B1/00124—Connectors, fasteners and adapters, e.g. on the endoscope handle electrical, e.g. electrical plug-and-socket connection
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
    • H01R13/633—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for disengagement only
    • H01R13/635—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for disengagement only by mechanical pressure, e.g. spring force
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Abstract

The invention provides a disposable plug structure, an electrical connector and an endoscope, relates to the field of medical instruments, and solves the problem that the prior art cannot effectively ensure disposable use of an endoscope operation part. In the invention, the wall of the insertion hole of the plug is provided with a stop part; the two ends of the elastic piece are respectively connected with the plug and the stop part, and the stop part locks the elastic piece to enable the elastic piece to be in an energy storage state; one end of the traction body is connected with the elastic piece, and the other end of the traction body is arranged outside the plug. When the pin body is inserted into the insertion hole, the trigger arranged in the insertion hole can be pushed in the axial direction, the trigger pushes the elastic piece and drives the second end of the elastic piece to move in the circumferential direction so as to release the axial limit of the stop part on the elastic piece, and in the process of pulling out the pin body, the second end of the elastic piece can move towards the hole opening of the insertion hole and drive the traction body to reduce the length of the traction body positioned outside the plug, so that the lead is pulled, the connection structure of the pin needle and the lead is forcedly damaged, and the disposable use of the endoscope operation part can be effectively ensured.

Description

Disposable plug structure, electrical connector and endoscope
Technical Field
The invention relates to the field of medical equipment, in particular to a disposable plug structure, an electrical connector and an endoscope.
Background
Endoscopes are a commonly used medical device that is used to access the natural lumen of the human body directly for examination, providing the physician with adequate diagnostic information. Endoscopes generally include: the device comprises an insertion part for being inserted into the human body, a handle convenient to operate and a display device for displaying the internal environment of a natural cavity of the human body, wherein the insertion part and the handle can be collectively called as an operation part, and the operation part and the display device are in communication connection through a pluggable connector; the endoscope can realize peeping and focus exploration and treatment of the interior of a human body through the matching of the three parts.
Because the insertion portion of the endoscope operation portion is required to enter the human body, and the handle portion is provided with an instrument channel for guiding instruments in and out, body fluids, tissues and the like of the human body are contaminated, and the endoscope operation portion is polluted. Endoscopy or treatment is costly and generally requires that the endoscope operating section be reusable, so that after one use it needs to be sterilized as required for the next use. The endoscope operation part which is reused is sterilized, but cross infection cannot be completely avoided, and in the case of high sanitary requirements, the endoscope operation part is required to be disposable, namely, the endoscope operation part which is used each time is completely new and unused, so that the risk of cross infection is eliminated. Under the above requirements, a disposable endoscope operation section is produced. The disposable endoscope operation part is correspondingly improved in terms of materials and design in some places due to the limitation of the use times of the disposable endoscope operation part, so that the disposable endoscope operation part is lower in production cost than the reusable endoscope operation part, but still is more expensive, and the disposable endoscope operation part needs to enter a human body through a natural channel of the human body to finish certain operations, so that the quality and performance of the endoscope operation part are stable and reliable, and the function of the disposable endoscope operation part can still be kept normal after the disposable endoscope operation part is used once.
Therefore, how to effectively ensure that the disposable endoscope operation part after use cannot be reused has become a technical problem to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to design a disposable plug structure, an electrical connector and an endoscope, which are used for solving the problem that the disposable operation part of the endoscope cannot be effectively ensured.
The invention is realized by the following technical scheme:
the invention provides a disposable plug structure which comprises a plug, a trigger, an elastic piece and a traction body; the insertion end of the plug is provided with an axial insertion hole which is used for receiving the pin body, the blind end of the insertion hole is used for connecting a pin needle, and the hole wall of the insertion hole is provided with a stop part; the trigger is connected to the plug in a guiding way and is provided with a first abutting part, and a pin body which can be inserted into the insertion hole is abutted and pushed towards the blind end of the insertion hole along the axial direction; the elastic piece is in an axially deformed energy storage state, a first end of the elastic piece is connected with the plug, a second end of the elastic piece is provided with a second abutting part, the second abutting part is in contact with the first abutting part to form slope guiding connection, an avoidance structure axially misplaced with the stop part is arranged on the side of the second abutting part, and the second end of the elastic piece abuts against the stop part at a first position to axially limit; one end of the traction body is connected with the elastic piece, and the other end of the traction body is used for connecting a lead connected with a pin needle connected with the blind end of the insertion hole; the second abutting part can move along the circumferential direction under the axial abutting of the first abutting part, so that the elastic piece and the stop part are free from axial limit; in the process that the pin body is pulled out of the insertion hole, the stop part can axially enter the avoidance structure, the second end of the elastic piece can axially move to a third position and drive the other end of the traction body to move towards the orifice of the insertion hole so as to pull the lead to break the electrical connection between the lead and the pin needle, and the third position is axially far away from the blind end of the insertion hole compared with the first position.
When the structure is adopted, the elastic piece is installed on the plug in an axially deformed energy storage state, the second end of the elastic piece is connected with the stop part arranged on the wall of the insertion hole to realize axial limiting, and the elastic piece can be braked and locked, so that the elastic piece can be kept in a stable state waiting for energy release and has the capability of outputting axial movement. Meanwhile, the elastic piece is designed into a part which can be pushed towards the blind end of the insertion hole by the pin body which is matched with the insertion hole, so that the elastic piece can be pushed by the pin body along the axial direction. When the elastic piece is pushed against, the first abutting part is contacted with the second abutting part to realize slope guiding connection, and under the slope guiding connection, the first abutting part can drive the second abutting part to move along the circumferential direction, so that the avoidance structure can move along the circumferential direction and axially align with the stop part, and a condition that the elastic piece cannot axially abut against the stop part again in an axial resetting mode to establish an axial braking locking relation is created for the elastic piece. In this way, in the process of pulling out the pin body from the insertion hole, the elastic piece enables the second end of the elastic piece to move towards the opening of the insertion hole in a mode of releasing energy storage, so that the traction body connected to the elastic piece can be pulled to shorten the length outside the plug, and the traction body has a use function of pulling a wire connected with the pin needle in a pulling mode. After the disposable plug structure is adopted, when the structure is applied to the electric connector of the connector, the traction body can be used for pulling the lead connected with the pin needle to destroy the electric connection between the lead and the pin needle so as to achieve the purpose of forcibly destroying the connection function of the electric connector. When the disposable plug structure is applied to the electrical connector of the connector matched with the disposable endoscope operation part, the disposable endoscope operation part has the function of destroying the communication connection capability after one-time plug. Compared with the prior art that the use of the disposable endoscope operation part is limited by a self-destruction program, the disposable operation part can be effectively ensured to be disposable by structurally destroying the electric connector through the disposable plug structure.
Further, in order to better realize the invention, the following arrangement structure is adopted: the first abutting portion and the second abutting portion adopt slope guiding, the first abutting portion or the second abutting portion is provided with a first slope extending along the circumferential direction in an inclined mode, and the first slope serves as one contact surface of the first abutting portion and the second abutting portion in axial abutting mode.
Further, in order to better realize the invention, the following arrangement structure is adopted: the disposable plug structure further comprises a second slope extending along the circumferential direction in an inclined manner, the second slope is parallel to the first slope, the second slope is formed on one of the first abutting portion and the second abutting portion, which is not formed with the first slope, and the second slope is used as the other contact surface of the first abutting portion and the second abutting portion, which axially abuts against each other.
Further, in order to better realize the invention, the following arrangement structure is adopted: the one end of backstop portion is provided with along the third domatic and the breach of arranging of week Xiang Yi preface, second butt portion axial counterpoint stretch into in the breach quilt breach axial braking and circumference rotation stopping are spacing, second butt portion receives the axial of first butt portion is supported and is pushed away can along the axial and withdraw from the breach and along circumference removal in order to with the axial counterpoint of third domatic, second butt portion can when towards the drill way of insertion hole removes, with third domatic contact and receive its guide effect along circumference removal, so that dodge the structure with backstop portion axial counterpoint.
Further, in order to better realize the invention, the following arrangement structure is adopted: the traction body is provided as a rope or chain or rod or plate.
When the structure is adopted, when the traction body is arranged as a rope, the effect that the traction body only produces unidirectional traction on the connected wire can be well ensured, and the situation that the wire and the welding spot of the pin needle are damaged or the wire is torn off before use due to corresponding displacement of the traction body in the process that the elastic piece is propped by the pin body to pull the connected wire can be avoided.
Further, in order to better realize the invention, the following arrangement structure is adopted: the plug is provided with a perforation which penetrates through the hole wall of the insertion hole or penetrates through the blind end of the insertion hole along the axial direction.
By adopting the arrangement structure, the design that the blind end of the insertion hole is penetrated through by the perforation along the axial direction can enable the distance from the inside of the insertion hole to the outside of the plug, which is positioned at the connection point of the pin needle and the lead, to be shorter, thus saving the use amount of the traction body and the space in the insertion hole. In addition, the direction of perforation is unanimous with the axial displacement direction of elastic component, can guarantee well that the traction body shuttles smoothly in the perforation, can effectively avoid the traction body to remove the card and hinder and lead to the traction body to be located the unable reduction of length outside the patchhole or can't reduce to prescribed condition that can guarantee to break down pin needle and wire connection solder joint or lead to the fact the length that the wire was broken in the short time, avoid providing a chance that can be reused to guarantee the disposable of endoscope operating portion more effectively.
Further, in order to better realize the invention, the following arrangement structure is adopted: the elastic piece comprises an elastic body and a movable body, the elastic body connects the movable body with the plug, the second abutting part is arranged on the movable body, and the movable body abuts against the stop part under the elastic action of the elastic body.
Further, in order to better realize the invention, the following arrangement structure is adopted: the movable body is arranged as a pipe body and is coaxially arranged in the insertion hole, and the second abutting part axially protrudes out of one end of the movable body; the stop part is arranged to be radially protruding, and is axially abutted with the second abutting part.
When the structure is adopted, the movable body arranged as the pipe body is coaxially sleeved with the insertion hole, so that the axial movement and circumferential rotation of the movable body are stable, and the blocking in the movement process is avoided.
Further, in order to better realize the invention, the following arrangement structure is adopted: the trigger is arranged as a tube body, and is coaxially arranged in the insertion hole and is in axial guiding fit with the insertion hole.
When the setting structure is adopted, the trigger arranged as the pipe body is coaxially sleeved with the insertion hole, so that the axial movement of the trigger is stable, and the blocking in the movement process is avoided.
Further to better realize the invention: the elastic body is arranged as a spiral pressure spring inserted into the insertion hole.
Further to better realize the invention: the blind end of the insertion hole is provided with an axially extending annular groove, and the spiral compression spring is accommodated in the annular groove.
When adopting above-mentioned setting structure, when the blind end of patchhole sets up the annular, the blind end can have longer length in the axial section of annular department, can stably install the pin needle, and the spiral pressure spring also can be held in the annular, can occupy less like this or do not occupy the space of patchhole, can let this kind of disposable plug structure be designed to be shorter under the circumstances that possesses relevant function, and then can reduce the use amount of traction body at least to reduce manufacturing cost.
The invention also provides an electrical connector, which comprises a first pin needle and the disposable plug-in structure, wherein at least one first pin needle is arranged at the blind end of the plug-in hole of the disposable plug-in structure in a penetrating way.
When the structure is adopted, in the disposable plug structure adopted by the electric connector, the elastic piece is installed on the plug in an axially deformed energy storage state, the second end of the elastic piece is connected with the stop part arranged on the wall of the insertion hole to realize axial braking, so that the elastic piece can be locked, and the elastic piece can be kept in a stable state waiting for energy release and has the capability of outputting axial movement. Meanwhile, the elastic piece is designed into a part which can be pushed towards the blind end of the insertion hole by the pin body which is matched with the insertion hole, so that the elastic piece can be pushed by the pin body along the axial direction. When the elastic piece is pushed against, the first abutting part is contacted with the second abutting part to realize slope guiding connection, and under the slope guiding connection, the first abutting part can drive the second abutting part to move along the circumferential direction, so that the avoidance structure can move along the circumferential direction and axially align with the stop part, and a condition that the elastic piece cannot axially abut against the stop part again in an axial resetting mode to establish an axial braking locking relation is created for the elastic piece. In this way, in the process of pulling out the pin body from the insertion hole, the elastic piece enables the second end of the elastic piece to move towards the opening of the insertion hole in a mode of releasing energy storage, so that the traction body connected to the elastic piece can be pulled to shorten the length outside the plug, and the traction body has a use function of pulling a wire connected with the pin needle in a pulling mode. The electric connector can pull the lead connected with the pin needle through the traction body to break the electric connection between the lead and the pin needle so as to achieve the purpose of forcedly breaking the connection function of the electric connector. The electrical connector can be applied to the disposable endoscope operation part, so that the disposable endoscope operation part has the function of destroying the communication connection capability after one-time plug-in. Compared with the prior art that the use of the disposable endoscope operation part is limited by a self-destruction program, the disposable operation part can be effectively ensured to be disposable by structurally destroying the electric connector through the disposable plug structure.
The invention also provides an endoscope, which comprises an endoscope operation part and the electrical connector, wherein a wire in a cable connected with the endoscope operation part is connected with the end part of the first pin needle, which is positioned at the outer side of the plug, and the traction body is fixedly connected with the wire.
When the structure is adopted, the disposable plug structure is adopted in the electric connector adopted by the endoscope operation part, wherein the elastic piece is installed on the plug in an axially deformed energy storage state, the second end of the elastic piece is connected with the stop part arranged on the wall of the insertion hole to realize axial braking, so that the elastic piece can be locked, and the elastic piece can be kept in a stable state waiting for energy release and has the capability of outputting axial movement. Meanwhile, the elastic piece is designed into a part which can be pushed towards the blind end of the insertion hole by the pin body which is matched with the insertion hole, so that the elastic piece can be pushed by the pin body along the axial direction. When the elastic piece is pushed against, the first abutting part is contacted with the second abutting part to realize slope guiding connection, and under the slope guiding connection, the first abutting part can drive the second abutting part to move along the circumferential direction, so that the avoidance structure can move along the circumferential direction and axially align with the stop part, and a condition that the elastic piece cannot axially abut against the stop part again in an axial resetting mode to establish an axial braking locking relation is created for the elastic piece. In this way, in the process of pulling out the pin body from the insertion hole, the elastic piece enables the second end of the elastic piece to move towards the opening of the insertion hole in a mode of releasing energy storage, so that the traction body connected to the elastic piece can be pulled to shorten the length outside the plug, and the traction body has a use function of pulling a wire connected with the pin needle in a pulling mode. The electric connector can pull the lead connected with the pin needle through the traction body to destroy the electric connection between the lead and the pin needle, so that the aim of forcedly destroying the connection function of the electric connector is fulfilled, and the disposable endoscope operation part has the function of destroying the communication connection capability after one-time plug. Compared with the prior art that the use of the disposable endoscope operation part is limited by a self-destruction program, the disposable operation part can be effectively ensured to be disposable by structurally destroying the electric connector through the disposable plug structure.
The invention has the following advantages and beneficial effects:
according to the invention, the elastic piece is arranged on the plug in an axially deformed energy storage state, the second end of the elastic piece is connected with the stop part arranged on the wall of the insertion hole to realize axial limit, so that the elastic piece can be braked and locked, and can be kept in a stable state waiting for energy release, and the elastic piece has the capability of outputting axial movement. Meanwhile, the elastic piece is designed into a part which can be pushed towards the blind end of the insertion hole by the pin body which is matched with the insertion hole, so that the elastic piece can be pushed by the pin body along the axial direction. When the elastic piece is pushed against, the first abutting part is contacted with the second abutting part to realize slope guiding connection, and under the slope guiding connection, the first abutting part can drive the second abutting part to move along the circumferential direction, so that the avoidance structure can move along the circumferential direction and axially align with the stop part, and a condition that the elastic piece cannot axially abut against the stop part again in an axial resetting mode to establish an axial braking locking relation is created for the elastic piece. In this way, in the process of pulling out the pin body from the insertion hole, the elastic piece enables the second end of the elastic piece to move towards the opening of the insertion hole in a mode of releasing energy storage, so that the traction body connected to the elastic piece can be pulled to shorten the length outside the plug, and the traction body has a use function of pulling a wire connected with the pin needle in a pulling mode. After the disposable plug structure is adopted, when the structure is applied to the electric connector of the connector, the traction body can be used for pulling the lead connected with the pin needle to destroy the electric connection between the lead and the pin needle so as to achieve the purpose of forcibly destroying the connection function of the electric connector. When the disposable plug structure is applied to the electrical connector of the connector matched with the disposable endoscope operation part, the disposable endoscope operation part has the function of destroying the communication connection capability after one-time plug. Compared with the prior art that the use of the disposable endoscope operation part is limited by a self-destruction program, the disposable operation part can be effectively ensured to be disposable by structurally destroying the electric connector through the disposable plug structure.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the electrical connector of the present invention (outer tube and trigger are treated in perspective);
FIG. 2 is a schematic end view of an electrical connector according to the present invention;
fig. 3 shows the structure of the electrical connector and wire connection of the present invention (the wires and the traction body are shown in bold solid lines);
FIG. 4 shows an external appearance of the disposable plug-in structure;
FIG. 5 shows the structure when the stopper is locked with the movable body (the movable body is in the first position) in the disposable plug structure;
FIG. 6 shows the configuration of the disposable plug-in configuration with the movable body in the third position (the outer tube and trigger are shown in perspective);
FIG. 7 shows the connection of the elastic member to the joint base;
FIG. 8 illustrates a general structure and mating relationship when the second abutment is offset from the stop;
FIG. 9 illustrates another general structure and mating relationship when the second abutment is offset from the stop;
fig. 10 shows a structure of an endoscope operation section in the present invention.
Marked in the figure as:
1. a plug; 1a, an outer tube; 1b, a connector seat; 1b1, a semicircular groove; 11. an insertion hole; 12. a stop portion; 121. a third slope; 122. a notch; 122a, an axial stop surface; 122b, circumferential stop surfaces; 13. perforating; 14. a ring groove; 15. a positioning key; 151. a protrusion;
2. a trigger; 21. a first abutting portion;
3. an elastic member; 3a, an elastomer; 3b, a movable body; 31. a second abutting portion; 32. an avoidance structure;
4. a traction body;
5a, a first slope; 5b, a second slope;
6. a first pin needle;
7. an outer insulating sleeve;
8. an endoscope operation unit;
9. and (5) conducting wires.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, based on the examples herein, which are within the scope of the invention as defined by the claims, will be within the scope of the invention as defined by the claims.
In the description of the present invention, it is to be noted that, unless otherwise indicated, the meaning of "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, nor as limiting the number.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art.
In various embodiments of the present application, "proximal" and "distal" refer to the proximal and distal positions of an endoscope operating section relative to a user when the electrical connector is plugged into another electrical connector of the connector in a use environment. Wherein the end closer to the user is designated as the "proximal end" and the end farther from the user is designated as the "distal end".
In the application, the pin body is a structure capable of being inserted into the insertion hole 11, the pin body and the plug 1 belong to a component of two plugs (a male plug and a female plug) in one connector, the pin body and the blind end of the insertion hole 11 are used for penetrating pin needles, the pin needles penetrating through the blind end of the insertion hole 11 can be male pin needles or female pin needles, and correspondingly, the pin needles installed on the pin body are the female pin needles or male pin needles, wherein the pin needles penetrating through the insertion hole 11 and the pin needles penetrating through the pin body are distinguished by the first pin needle 6 and the second pin needle.
In the related art, in order to ensure the disposable requirement of the endoscope operation part, the disposable requirement is ensured by limiting the use time of a single endoscope operation part through a self-destruction program, but the problem of the operation is that: 1. the limited use time, too short, may not allow for one-time endoscopic or therapeutic procedures; 2. if the limited service time is too long, the risk of being reused exists; 3. there is a risk of being taken for reuse by releasing the duration limit by modifying the self-destructing procedure.
The inventors found that it is very difficult to limit the disposable use of the endoscope operation section by the self-destruction procedure, and the problem of multiplexing cannot be effectively avoided, but if the connection structure is broken from the physical form by the hand of the communication connection structure between the endoscope operation section and the display device, multiplexing of the endoscope operation section can be more effectively avoided.
Accordingly, there is provided a communication connection structure capable of being forcibly destroyed after one use of an endoscope operation section, which is effective in solving the problem of multiplexing the endoscope operation section, but unfortunately, there is no communication connection structure capable of being forcibly destroyed after one use, which satisfies the above-mentioned requirements.
Accordingly, the inventors herein have provided a plug structure in an electrical connector of a connector for an endoscope operation section from below a communication structure employed by the endoscope operation section, designed as a disposable module, and provided an electrical connector employing the disposable plug structure and an endoscope operation section employing the electrical connector.
In one aspect, the present invention provides a disposable plug structure, which is used as a main component of an electrical connector in a connector, and can destroy a communication connection function of the electrical connector through a single plug action, so as to achieve a purpose of disposable use, thereby effectively ensuring that an endoscope operation part of the electrical connector adopting the disposable plug structure can be destroyed after one use and cannot be reused, and as shown in fig. 1 to 9, the disposable plug structure is particularly configured as follows:
The disposable plug-in structure comprises a plug 1, a trigger 2, an elastic piece 3 and a traction body 4.
The plug 1 belongs to a part of the connector, wherein the electrical connector at one end is provided with a plurality of structural improvements or redesigns based on the existing electrical connector, but at least the plug 1 and the pin body are ensured to be capable of completing connection and disconnection according to the existing axial plug-in formula.
The plug 1 has an axial insertion hole 11, the insertion hole 11 is a blind hole for receiving a pin body matched with the hole pattern thereof, the hole pattern of the insertion hole 11 can be round, or can be rectangular, oblong, triangular, etc., and the blind end of the insertion hole 11 is used for penetrating the first pin needle 6. The plug 1 further has a stop portion 12, where the stop portion 12 is formed on a wall of the insertion hole 11 and protrudes along a radial direction to cooperate with the elastic member 3 to lock the elastic member 3.
The trigger 2 is connected to the plug 1, in this embodiment specifically arranged in the insertion hole 11. The trigger 2 is guided by a guide structure with the insertion hole 11 so that the trigger 2 can move in the axial direction, and the guide fit can be achieved by using a positioning key 15 provided in the insertion hole 11 of the plug 1. The proximal end of the trigger 2 is provided with a first abutment 21, and the first abutment 21 is configured to push against the elastic member 3 and drive the elastic member 3 to move in a circumferential direction. The distal end of the trigger 2 has a radial thickness that is able to be pushed against the proximal end of the pin inserted into the insertion hole 11, by the pin axially towards the blind end of the insertion hole 11.
The elastic member 3 can store energy through self deformation, and release energy to return to a free state after the external force is released. In this embodiment, the elastic member 3 is integrally disposed in the insertion hole 11 and is in an axially deformed energy storage state. The first end of the elastic piece 3 is connected to the plug 1, the second end of the elastic piece 3 is provided with a second abutting portion 31 extending towards the distal end along the axial direction, the second abutting portion 31 is in contact with the first abutting portion 21 to realize slope guiding connection, the elastic piece 3 is further provided with a avoidance structure 32 which is axially staggered with the stop portion 12 on the side of the second abutting portion 31, and the avoidance structure 32 can allow the stop portion 12 to axially enter the avoidance structure. The second end of the elastic piece 3 is in the first position and is abutted against the stop part 12 to realize axial limiting, so that the stop part 12 provides an axial braking effect on the elastic piece 3, and the elastic piece 3 is maintained in an axially deformed energy storage state.
The distal end of the traction body 4 is positioned in the insertion hole 11 and connected to a part of the elastic member 3 which can move along the axial direction along with the change of energy storage, and the proximal end of the traction body 4 is positioned outside the insertion hole 11 and is in a state of being not connected with other components, so that the traction body 4 is ready to be connected with a wire connected with a terminal of the first pin needle 6 penetrating through the blind end of the insertion hole 11. The proximal end of the traction body 4 is axially movable with the distal end.
The plug 1 and the pin body are axially inserted and pulled, and the elastic member 3 and the stop portion 12 are unlocked by inserting and pulling the pin body. The unlocking mode provided by the unlocking path is as follows: in the process that the pin body continuously moves towards the blind end of the insertion hole 11 along the axial direction after being inserted into the insertion hole 11 along the axial direction, the proximal end of the pin body is abutted against the distal end of the trigger 2 to drive the trigger 2 to continuously move towards the blind end of the insertion hole 11; the first abutting portion 21 abuts against the second abutting portion 31, the second abutting portion 31 moves circumferentially under the axial abutting of the first abutting portion 21 through the slope guiding engagement relationship between the first abutting portion 21 and the second abutting portion 31, when the pin body abuts against the second end of the elastic member 3 to the second position, the elastic member 3 and the stop portion 12 are axially displaced, so that the axial limiting relationship between them is released, and the axial braking action between the stop portion 12 and the elastic member 3 is released.
During the process of withdrawing the pin body from the insertion hole 11, the second end of the elastic member 3 continuously abuts against the pin body or the trigger 2 in a manner of releasing energy storage and moves towards the orifice of the insertion hole 11 along with the withdrawing process of the pin body, in this process, the stop part 12 can axially enter the avoidance structure 32, and the second end of the elastic member 3 can axially move to a third position and drive the other end of the traction body 4 to move towards the orifice of the insertion hole 11, wherein the third position is axially far away from the blind end of the insertion hole 11 than the first position.
The elastic piece 3 is installed on the plug 1 in an axially deformed energy storage state, and the second end of the elastic piece 3 is connected with a stop part 12 arranged on the wall of the insertion hole 11 to realize axial braking, so that the elastic piece 3 can be locked, can be kept in a stable state waiting for energy release, and has the capability of outputting axial movement. At the same time, the elastic member 3 is designed as a member that can be pushed toward the blind end of the insertion hole 11 by a pin body that is inserted into the insertion hole 11, so that the elastic member 3 can be pushed in the axial direction by the pin body. When the elastic member 3 is pushed, the first abutting portion 21 contacts with the second abutting portion 31 to realize a slope guiding connection, and under the slope guiding connection, the first abutting portion 21 can drive the second abutting portion 31 to move along the circumferential direction, so that the elastic member 3 and the stop portion 12 are axially dislocated, and a condition that the elastic member 3 cannot axially abut against the stop portion 12 again in an axial resetting manner to establish an axial braking locking relationship is created for the elastic member 3. In this way, during the extraction of the pin from the insertion hole 11, the elastic element 3 will move its second end towards the opening of the insertion hole 11 by releasing the energy storage, so that the pulling body 4 connected to the elastic element 3 can be pulled to shorten the length outside the plug 1, so that the pulling body 4 has the function of pulling the wire connected to the first pin needle 6 by pulling.
After the disposable plug structure is adopted, when the structure is applied to the electric joint of the connector, the traction body 4 can be used for pulling the lead connected with the first pin needle 6, and the lead 9 is displaced to damage the electric connection with the first pin needle 6 so as to achieve the purpose of forcedly damaging the electric joint connection function. When the disposable plug structure is applied to the electric connector of the connector matched with the disposable endoscope operation part, the disposable endoscope operation part has the function of destroying the communication connection capability after one-time plug, and compared with the prior art that the disposable operation part is limited in use by a self-destruction program, the disposable operation part can be effectively ensured to be disposable.
According to some alternative embodiments, as shown in fig. 1, 2, 3, 5, 6 and 7, the plug 1 includes an outer tube 1a and a connector 1b, where the connector 1b is tightly matched with the outer tube 1a through a shaft hole, so that the connector 1b seals the proximal end of the outer tube 1a, and an insertion hole 11 is formed in the outer tube 1 a. The pipe wall of the outer pipe 1a is provided with a clamping structure at a position close to the orifice (distal end) of the insertion hole 11, and the clamping structure is used for being matched with a clamping structure arranged on an electrical connector of the configuration pin body, so that an axial limiting effect can be provided through clamping when two electrical connectors of the connector are in butt joint. As shown in fig. 5, a positioning key 15 extending from the opening toward the blind end along the axial direction is provided on the inner wall of the outer tube 1a, i.e. the wall of the insertion hole 11, and the positioning key 15 is used for being matched with a positioning groove to realize foolproof when the two electrical connectors of the connector are inserted. The pin body corresponding to the insertion hole 11 is provided with a positioning groove corresponding to the positioning key 15. The outer wall of the trigger 2 is also provided with a positioning slot for axial guiding in cooperation with the positioning key 15.
According to some alternative embodiments, as shown in fig. 1, 3 and 5, the distal end face of the positioning key 15 is flush with the distal end face of the outer tube 1a, and a radially protruding protrusion 151 is formed at the distal end of the positioning key 15, and the radial thickness of the protrusion 151 is greater than the groove depth of the positioning groove provided in the outer wall of the trigger 2. When the trigger 2 moves along the detent 15 to the distal end of the outer tube 1a, the projection 151 will abut against the distal end of the trigger 2, preventing the trigger 2 from axially disengaging from the outer tube 1a.
According to some alternative embodiments, as shown in fig. 3, 5, 6 and 7, one specific structure of the elastic member 3 is shown, the elastic member 3 includes an elastic body 3a and a movable body 3b driven by the elastic body 3 a. The elastic body 3a connects the movable body 3b and the plug 1, and the movable body 3b is abutted against the stop portion 12 by elastic force to realize locking. The second abutting portion 31 provided at the distal end of the movable body 3b may be directly abutted against the proximal end of the stopper portion 12, or may be axially offset from the stopper portion 12 as shown in fig. 8 and 9, and abutted against the proximal end of the stopper portion 12 by a portion of the distal end of the movable body 3b where the second abutting portion 31 is not provided, and at this time, the avoidance structure 32 is located on a side of the movable body 3b close to the stopper portion 12, and if the movable body 3b is a plate-like structure, the avoidance structure 32 corresponds to a space on a side of the movable body 3b, and belongs to a virtual structure or a non-solid structure.
According to some alternative embodiments, the trigger 2 and the elastic member 3 are guided by a slope, and specifically, the first abutment portion 21 on the trigger 2 and the second abutment portion 31 on the movable body 3b are guided by a slope. As a preferred embodiment, as shown in fig. 8, a first slope surface 5a for guiding is provided between the first abutting portion 21 and the second abutting portion 31, the first slope surface 5a extends obliquely in the circumferential direction, the abutting portion formed at the proximal end of the first abutting portion 21 or the distal end of the second abutting portion 31, where the first slope surface 5a is not formed, may be provided as an axial protrusion, and one of the contact surfaces of the first abutting portion 21 and the second abutting portion 31, which axially abuts, abuts with the abutting portion provided as an axial protrusion. As another preferred embodiment, as shown in fig. 9, a first slope 5a and a second slope 5b for guiding are provided between the first abutting portion 21 and the second abutting portion 31, the second slope 5b and the first slope 5a are formed in parallel and on different abutting portions, specifically, the first slope 5a is formed at the proximal end of the first abutting portion 21, the second slope 5b is formed at the distal end of the second abutting portion 31, and the first slope 5a and the second slope 5b serve as two contact surfaces where the first abutting portion 21 and the second abutting portion 31 axially abut.
According to some alternative embodiments, as shown in fig. 1, 5, 6 and 7, the top end of the stop portion 12 is provided with a third sloping surface 121 and a notch 122 arranged in a circumferential Xiang Yi order, the notch 122 providing an axial stop surface 122a and a circumferential stop surface 122b. The distal end of the second abutting portion 31 is axially aligned with the notch 122 and extends into the notch 122, the second abutting portion abuts against the circumferential stop surface 122b under the action of the elastic body 3a and is axially braked by the notch 122, and the axial stop surface 122a is located on one side of the second abutting portion 31 to limit circumferential rotation of the second abutting portion. Part of the structure of the movable body 3b needs to be located outside the notch 122 in the circumferential direction or the radial direction so that the pin body can be abutted against the second abutment 31 by the first abutment 21 on the trigger 2 when inserted into the insertion hole 11. When the second abutting portion 31 is pushed by the first abutting portion 21 in the axial direction, the notch 122 can be withdrawn in the axial direction, the axial stop surface 122a limits the turnover of the second abutting portion 31 in the process of withdrawing the notch 122, after withdrawing the notch 122, the second abutting portion 31 can move in the circumferential direction to axially align with the third slope surface 121 when abutting against the first abutting portion 21, and the second abutting portion 31 can move in the circumferential direction under the guiding action of the third slope surface 121 when moving towards the aperture of the insertion hole 11, so that the avoidance structure 32 axially aligns with the stop portion 12. Of course, if the guide surface at the contact point of the first abutting portion 21 and the second abutting portion 31 is sufficiently long, and is larger than the width of the stopper portion 12 in the circumferential direction, and the compression amount of the elastic body 3a is also sufficient, the movable body 3b can be driven to rotate by a sufficient angle in the circumferential direction after the first abutting portion 21 abuts against the second abutting portion 31 in the axial direction, so that the escape structure 32 is directly aligned with the stopper portion 12 in the axial direction.
According to some alternative embodiments, as a first preferred embodiment of the movable body 3b and the stop portion 12, the movable body 3b is provided as a plate-like structure having a circumferential length smaller than half the circumference of the insertion hole 11, as shown in fig. 8 and 9. When the insertion hole 11 is a circular hole, the movable body 3b may be a curved plate, and its outer curved surface is disposed opposite to the hole wall of the insertion hole 11 and is tightly attached to each other, and its axis coincides with the axis of the insertion hole 11. The stop 12 is provided as a radial projection, integral with the positioning key 15, as an extension of the proximal end of the positioning key 15.
As a second preferred embodiment of the movable body 3 b. As shown in fig. 5, 6 and 7, the movable body 3b is provided as a pipe body coaxially fitted with the insertion hole 11, and at this time, the insertion hole 11 should be provided as a circular hole, and the cross-sectional shape of the movable body 3b is, of course, identical to the cross-sectional shape of the insertion hole 11. The second abutting portion 31 is located on the distal end of the movable body 3b, protruding in the axial direction. The stop part 12 is arranged to be radially protruding and axially abuts against the second abutting part 31, the stop part 12 and the positioning key 15 are of an integral structure, as a section of extension part of the positioning key 15 at the proximal end, the movable body 3b is a tube body coaxially sleeved in the insertion hole 11, an axially extending avoidance structure 32 is arranged on the side of the second abutting part 31, the avoidance structure 32 can be a groove formed on the outer wall or a notch, so that after the avoidance structure 32 is aligned with the stop part 12, the movable body 3b can enter the avoidance structure 32 under the action of the elastic body 3a when axially moving towards the orifice of the insertion hole 11, and the axial movement of the movable body 3b is not influenced. In the second preferred embodiment, the movable body 3b of the tube body is coaxially sleeved with the insertion hole 11, so that the axial movement and circumferential rotation of the movable body 3b can be stabilized, and the blocking in the movement process can be avoided.
According to some alternative embodiments, as shown in fig. 5, 6 and 7, the trigger 2 is provided as a tube coaxially fitted with the insertion hole 11, and at this time, the insertion hole 11 should be provided as a circular hole, and the cross-sectional shape of the movable body 3b is of course identical to the cross-sectional shape of the insertion hole 11. The outer circular surface of the trigger 2 is provided with a positioning groove which is matched with the positioning key 15 in a guiding way. The trigger 2 which is arranged as a tube body is coaxially sleeved with the insertion hole 11, so that the axial movement of the trigger 2 is stable, and the blocking in the movement process is avoided.
In some alternative embodiments, as shown in fig. 5, 6 and 7, the elastic body 3a is specifically a helical compression spring, which is disposed coaxially with the insertion hole 11.
According to some alternative embodiments, as shown in fig. 3 and 5, the blind end of the insertion hole 11 is provided with an axially extending ring groove 14, and the helical compression spring is accommodated in the ring groove 14, specifically, the diameter of the portion of the joint seat 1b located inside the outer tube 1a is smaller than the inner diameter of the outer tube 1a, so that an annulus is formed between the inner wall of the outer tube 1a and the joint seat 1b, and the annulus serves as the ring groove 14 for accommodating the helical compression spring. The spiral pressure spring is accommodated in the annular groove 14 arranged at the blind end of the insertion hole 11, the axial section of the blind end for ensuring stable installation of the first pin needle 6 is utilized, so that the spiral pressure spring occupies little or no space of the insertion hole 11, the disposable plug-in structure can be designed to be shorter under the condition of having related functions, and the use amount of the traction body 4 can be reduced at least to reduce the production cost.
According to some alternative embodiments, the traction body 4 can be a rope, a chain, a rod or a plate, but preferably, as shown in fig. 3, the rope is adopted, because when the traction body 4 is arranged as the rope, the effect that the traction body 4 only pulls the connected wire in one direction can be well ensured, and the situation that the elastic piece 3 is pushed by the pin body to push the traction body 4 to pull the connected wire to generate corresponding displacement, so that the welding points of the wire and the pin needle are damaged before use or the wire is pulled is avoided.
According to some alternative embodiments, the plug 1 is provided with perforations 13, the perforations 13 communicating the insertion hole 11 with the outside for threading the traction body 4. As shown in fig. 3 and 7, the through hole 13 penetrates the blind end of the insertion hole 11 in the axial direction, and specifically, an axial semicircular groove 1b1 is formed in the outer circumferential surface of the joint seat 1b, and the through hole 13 is formed between the semicircular groove 1b1 and the inner wall of the outer tube 1 a. Of course, perforations 13 may also be formed in the wall of the outer tube 1a, such as by placing the insertion holes 11 in radial communication with the outside of the outer tube 1a, but this would allow the traction body 4 to bypass from the outside of the outer tube 1a to the proximal end of the hub 1 b. Therefore, the through hole 13 preferably penetrates through the blind end of the insertion hole 11 along the axial direction, so that the distance from the inside of the insertion hole 11 to the outside of the plug 1 at the connection point of the first pin needle 6 and the lead wire is shorter, the use amount of the traction body 4 can be saved, the space in the insertion hole 11 is saved, in addition, the direction of the through hole 13 is consistent with the axial moving direction of the elastic piece 3, the smooth shuttling of the traction body 4 in the through hole 13 can be better ensured, the condition that the length of the traction body 4 outside the plug 1 cannot be reduced or cannot be reduced to a specified length capable of ensuring breaking the connection welding point of the pin needle and the lead wire or causing the lead wire to be broken in a short time can be effectively avoided, and an opportunity that the traction body 4 can be reused is avoided, so that the disposable operation part of the endoscope can be more effectively ensured.
On the other hand, the application also provides an electrical connector, which particularly adopts the following arrangement structure:
as shown in fig. 1 and 3, the electrical connector includes a first pin needle 6 and a disposable plug structure, and at least one first pin needle 6 is inserted into a blind end of an insertion hole 11 of a plug 1 of the disposable plug structure.
Preferably, a section of the outer tube 1a of the disposable plug structure, which is close to the proximal end, is sleeved with an outer insulation sleeve 7, and the traction body 4 and the first pin needle 6 of the disposable plug structure are wrapped in the outer insulation sleeve 7 so as to provide insulation protection for the traction body 4 and the first pin needle 6, so that the traction body 4 and the first pin needle 6 are not easily damaged in advance, meanwhile, the outer insulation sleeve 7 can also provide a plug stress point, and in addition, the outer insulation sleeve 7 can also improve the repair difficulty of the connecting welding point of the first pin needle 6 damaged in the outer insulation sleeve and the wire or the repair difficulty of the breakpoint of the wire so as to more effectively guarantee disposable use of the endoscope operation part.
In the disposable plug structure adopted by the electric connector, the elastic piece 3 is installed on the plug 1 in an axially deformed energy storage state, the second end of the elastic piece 3 is connected with the stop part 12 arranged on the wall of the insertion hole 11 to realize axial braking, so that the elastic piece 3 can be locked, and the elastic piece 3 can be kept in a stable state waiting for energy release and has the capability of outputting axial movement. At the same time, the elastic member 3 is designed as a member that can be pushed toward the blind end of the insertion hole 11 by a pin body that is inserted into the insertion hole 11, so that the elastic member 3 can be pushed in the axial direction by the pin body. When the elastic member 3 is pushed, the first abutting portion 21 contacts with the second abutting portion 31 to realize a slope guiding connection, and under the slope guiding connection, the first abutting portion 21 can drive the second abutting portion 31 to move along the circumferential direction, so that the avoiding structure 32 can move along the circumferential direction and axially align with the stop portion 12, thereby creating a condition for the elastic member 3 that an axial braking locking relationship cannot be established by axially abutting against the stop portion 12 again in an axial resetting manner. In this way, during the extraction of the pin from the insertion hole 11, the elastic element 3 will move its second end towards the opening of the insertion hole 11 by releasing the energy storage, so that the pulling body 4 connected to the elastic element 3 can be pulled to shorten the length outside the plug 1, so that the pulling body 4 has the function of pulling the wire connected to the pin needle by pulling. The electric connector can pull the lead connected with the pin needle through the traction body 4, and the lead displacement damages the electric connection of the lead and the pin needle, so that the aim of forcedly damaging the connection function of the electric connector is fulfilled. The electrical connector can be applied to the disposable endoscope operation part, so that the disposable endoscope operation part has the function of destroying the communication connection capability after one-time plug-in, and the structural destruction of the electrical connector is caused by the disposable plug-in structure.
In another aspect, the present application also provides an endoscope, in particular, using the following arrangement: the endoscope includes an endoscope operation section 8, a display device, and a connector, and a communication connection is established between the endoscope operation section 8 and the display device through at least one connector. Wherein, the above-mentioned electrical connector is adopted as one of the electrical connectors to which the endoscope operation section 8 is attached. The lead 9 in the cable connected with the endoscope operation part 8 is welded with the end part of the first pin needle 6 positioned at the outer side of the plug 1, the traction body 4 is fixedly connected with the lead 9 in a welding or bolting mode, and the connection point of the traction body 4 and the lead 9 is close to the connection welding point of the lead 9 and the first pin needle 6.
The cables connected to the endoscope operation section 8 include an external connection cable connected to the handle of the endoscope operation section 8 and a built-in cable connected to the built-in connection cable through a connector, and the built-in cable is provided in the handle of the endoscope operation section 8. The external connection cables to which the endoscope operation section 8 is attached are detachable and the external connection cables are not detachable, so that the positions of the electrical connectors on the endoscope operation section 8 in the above embodiment can be specifically selected according to the removability of the external connection cables. As shown in fig. 10, when the external connection cable of the endoscope operation section 8 is detachable, the electrical connector of the above embodiment is provided at point a, that is, on the handle of the endoscope operation section, for connection with the lead 9 in the built-in cable associated with the handle, and when the external connection cable of the endoscope operation section 8 is not detachable, the electrical connector of the above embodiment is provided at point b, that is, at one end of the external connection cable for connection with the display device, for connection with the lead 9 in the external connection cable.
In the electric connector adopted by the endoscope operation part, a disposable plug-in structure is adopted, wherein the elastic piece 3 is installed on the plug 1 in an axially deformed energy storage state, the second end of the elastic piece 3 is connected with the stop part 12 arranged on the wall of the insertion hole 11 to realize axial braking, so that the elastic piece 3 can be locked, and the elastic piece 3 can be kept in a stable state waiting for energy release and has the capability of outputting axial movement. At the same time, the elastic member 3 is designed as a member that can be pushed toward the blind end of the insertion hole 11 by a pin body that is inserted into the insertion hole 11, so that the elastic member 3 can be pushed in the axial direction by the pin body. When the elastic member 3 is pushed, the first abutting portion 21 contacts with the second abutting portion 31 to realize a slope guiding connection, and under the slope guiding connection, the first abutting portion 21 can drive the second abutting portion 31 to move along the circumferential direction, so that the avoiding structure 32 can move along the circumferential direction and axially align with the stop portion 12, thereby creating a condition for the elastic member 3 that an axial braking locking relationship cannot be established by axially abutting against the stop portion 12 again in an axial resetting manner. In this way, during the extraction of the pin from the insertion hole 11, the elastic element 3 will move its second end towards the opening of the insertion hole 11 by releasing the energy storage, so that the pulling body 4 connected to the elastic element 3 can be pulled to shorten the length outside the plug 1, so that the pulling body 4 has the function of pulling the wire connected to the pin needle by pulling. So that this kind of electric connection can play the effect of pulling to the wire that links to each other with the pin needle through traction body 4, destroy its solder joint with the pin needle or cause wire 9 to be broken through making wire 9 displacement to reach the purpose of forcing to destroy electric connection function, let disposable endoscope operating portion possess and just destroyed the function of communication connection ability after once plug, cause structural destruction to electric connection through disposable plug structure and compare in the use that the disposable endoscope operating portion was restricted through the self-destruction procedure to the prior art, can effectively guarantee the disposable of endoscope operating portion.
Before use, as shown in fig. 5, the movable body 3b is located at the first position, the second abutting portion 31 extends into the notch of the stop portion 12, and the second abutting portion 31 abuts against the circumferential stop surface 122b under the action of the elastic body 3a, so that axial braking is achieved.
In use, when the connector between the endoscope operation portion 8 and the display device is connected, the pin body is inserted into the insertion hole 11 to push the trigger 2 along the axial direction, the trigger 2 pushes the second abutting portion 31 of the movable body 3b through the first abutting portion 21, the elastic body 3a is compressed, at this time, the circumferential stop surface 122b limits the circumferential rotation of the second abutting portion 31, when the second abutting portion 31 moves downwards to the second position, the second abutting portion 31 is separated from the circumferential stop surface 122b, the elastic body 3a pushes the second abutting portion 31 to enable the second slope 5b on the second slope 5b to abut on the first slope 5a of the first abutting portion 21, the second abutting portion 31 rotates along the circumferential direction against the friction force until the second abutting portion 31 abuts on the proximal end of the trigger 2, and at this time, the notch of the second abutting portion 31 and the stop portion 12 are axially displaced and aligned with the third slope 121. After the pin body is inserted in place, the pin body is electrically connected with the first pin needle 6 penetrating through the connector seat 1b through the second pin needle penetrating through the pin body, and the movable body 3b is located at the second position.
After the connector using the plug of the present invention is disassembled, the pin body is gradually pulled away from the insertion hole 11, the movable body 3b moves axially towards the opening of the insertion hole 11 under the axial thrust of the elastic body 3a, thereafter, the second slope 5b of the second abutting portion 31 contacts with the third slope 121, the second abutting portion 31 rotates circumferentially against the friction force, so that the avoidance structure 32 is axially aligned with the stop portion 12 and the positioning key 15, thereafter, the stop portion 12 and the positioning key 15 gradually enter into the avoidance structure 32, and finally, the movable body 3b reaches the third position as shown in fig. 6, at this time, the movable body 3b has driven the traction body 4 to displace the lead 9, so that the welding point of the lead 9 and the first pin 6 is broken or the lead 9 is pulled. So that the endoscope operation section 8 using the plug of the present invention cannot be reused.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention.

Claims (10)

1. A disposable plug structure which characterized in that: comprising the following steps:
The plug comprises a plug (1), wherein an axial insertion hole (11) is formed in the insertion end of the plug (1), the insertion hole (11) is used for receiving a pin body, the blind end of the insertion hole (11) is used for connecting a pin needle, and a stop part (12) is arranged on the hole wall of the insertion hole (11);
a trigger (2) which is connected to the plug (1) in a guiding manner and is provided with a first abutting part (21) and can be abutted and pushed by a pin body inserted into the insertion hole (11) towards the blind end of the insertion hole (11) along the axial direction;
the elastic piece (3) is in an axially deformed energy storage state, a first end of the elastic piece is connected with the plug (1), a second end of the elastic piece is provided with a second abutting part (31), the second abutting part (31) is in contact with the first abutting part (21) to form slope guiding connection, an avoidance structure (32) axially misplaced with the stop part (12) is arranged on the side of the elastic piece (3) at the second abutting part (31), and the second end of the elastic piece (3) is abutted against the stop part (12) at a first position to axially limit;
a traction body (4) with one end connected to the elastic piece (3) and the other end connected to a lead wire connected to a pin connected to the blind end of the insertion hole (11);
The second abutting part (31) can move along the circumferential direction under the axial abutting of the first abutting part (21), so that the elastic piece (3) and the stop part (12) are released from axial limit; in the process that the pin body is pulled out of the insertion hole (11), the stop part (12) can axially enter the avoidance structure (32), the second end of the elastic piece (3) can axially move to a third position and drive the other end of the traction body (4) to move towards the orifice of the insertion hole (11) so as to draw a wire to break the electrical connection between the wire and the pin needle, and the third position is axially far away from the blind end of the insertion hole (11) than the first position.
2. The disposable pull-out structure of claim 1, wherein: the first abutting portion (21) or the second abutting portion (31) is provided with a first slope surface (5 a) extending obliquely along the circumferential direction, and the first slope surface (5 a) is used as one contact surface of the first abutting portion (21) and the second abutting portion (31) in axial abutting.
3. A disposable pull-out structure according to claim 2, wherein: the device further comprises a second slope surface (5 b) extending obliquely along the circumferential direction, the second slope surface (5 b) is parallel to the first slope surface (5 a), the second slope surface (5 b) is formed on one of the first abutting portion (21) and the second abutting portion (31) which is not formed with the first slope surface (5 a), and the second slope surface (5 b) is used as the other contact surface of the first abutting portion (21) and the second abutting portion (31) which are axially abutted.
4. A disposable pull-out structure according to claim 2 or 3, wherein: one end of the stop part (12) is provided with a third slope (121) and a notch (122) which are arranged along the circumferential Xiang Yi sequence, the second abutting part (31) axially aligns and stretches into the notch (122) and is axially braked and circumferentially stopped and limited by the notch (122), the second abutting part (31) can axially withdraw from the notch (122) and circumferentially move to axially align with the third slope (121) by being axially pushed by the first abutting part (21), and the second abutting part (31) can contact with the third slope (121) and circumferentially move under the guiding action of the second abutting part when moving towards the orifice of the insertion hole (11), so that the avoidance structure (32) and the stop part (12) axially align.
5. The disposable pull-out structure of claim 1, wherein: the traction body (4) is provided as a rope or chain or rod or plate.
6. The disposable pull-out structure of claim 1, wherein: the plug (1) is provided with a perforation (13), and the perforation (13) penetrates through the hole wall of the insertion hole (11) or penetrates through the blind end of the insertion hole (11) along the axial direction.
7. The disposable pull-out structure of claim 1, wherein: the elastic piece (3) comprises an elastic body (3 a) and a movable body (3 b), the elastic body (3 a) is used for connecting the movable body (3 b) with the plug (1), the second abutting portion (31) is arranged on the movable body (3 b), and the movable body (3 b) is abutted to the stop portion (12) under the elastic action of the elastic body (3 a).
8. The disposable pull-out structure of claim 7, wherein: the movable body (3 b) is arranged as a pipe body and is coaxially arranged in the insertion hole (11), and the second abutting part (31) axially protrudes out of one end of the movable body (3 b);
the stop part (12) is arranged to be radially convex, and the stop part (12) is axially abutted with the second abutting part (31).
9. An electrical connector, characterized in that: the disposable plug structure comprises a first pin needle (6) and the disposable plug structure of any one of claims 1-8, wherein at least one first pin needle (6) is arranged at the blind end of an insertion hole (11) of a plug (1) of the disposable plug structure in a penetrating manner.
10. An endoscope, characterized in that: the electric connector comprises an endoscope operation part (8) and the electric connector of claim 9, wherein a lead (9) in a cable connected with the endoscope operation part (8) is connected with the end part of the first pin needle (6) positioned outside the plug (1), and the traction body (4) is fixedly connected with the lead (9).
CN202310864190.0A 2023-07-14 2023-07-14 Disposable plug structure, electrical connector and endoscope Active CN116581575B (en)

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CN112472016A (en) * 2020-12-09 2021-03-12 江苏济远医疗科技有限公司 Disposable uterine endoscope
CN112998772A (en) * 2019-12-20 2021-06-22 杭州唯强医疗科技有限公司 Interventional defect stitching instrument
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US5454378A (en) * 1993-02-11 1995-10-03 Symbiosis Corporation Biopsy forceps having a detachable proximal handle and distal jaws
US20100030237A1 (en) * 2008-07-31 2010-02-04 Kensuke Hayashi Suture instrument
CA2739314A1 (en) * 2010-05-13 2011-11-13 Rex Medical, L.P. Rotational thrombectomy wire
CN104771814A (en) * 2015-04-28 2015-07-15 苏州施莱医疗器械有限公司 Disposable safe insulin injection needle head
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CN116742391A (en) * 2023-08-15 2023-09-12 湖南省华芯医疗器械有限公司 Disposable electrical plug and disposable endoscope
CN116742391B (en) * 2023-08-15 2023-10-13 湖南省华芯医疗器械有限公司 Disposable electrical plug and disposable endoscope

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