CN116613560A - Electrical connection assembly and endoscope - Google Patents
Electrical connection assembly and endoscope Download PDFInfo
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- CN116613560A CN116613560A CN202310864187.9A CN202310864187A CN116613560A CN 116613560 A CN116613560 A CN 116613560A CN 202310864187 A CN202310864187 A CN 202310864187A CN 116613560 A CN116613560 A CN 116613560A
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- abutting portion
- connection assembly
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- 238000003780 insertion Methods 0.000 claims description 94
- 230000037431 insertion Effects 0.000 claims description 94
- 230000005489 elastic deformation Effects 0.000 claims description 22
- 230000009471 action Effects 0.000 claims description 17
- 230000002093 peripheral effect Effects 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 15
- 230000000007 visual effect Effects 0.000 claims description 14
- 230000000149 penetrating effect Effects 0.000 claims description 13
- 230000000694 effects Effects 0.000 claims description 7
- 238000004891 communication Methods 0.000 description 17
- 230000008569 process Effects 0.000 description 10
- 238000003466 welding Methods 0.000 description 9
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 238000004146 energy storage Methods 0.000 description 5
- 238000009413 insulation Methods 0.000 description 5
- 230000000670 limiting effect Effects 0.000 description 5
- 206010011409 Cross infection Diseases 0.000 description 2
- 206010029803 Nosocomial infection Diseases 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000002788 crimping Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000001124 body fluid Anatomy 0.000 description 1
- 239000010839 body fluid Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000001839 endoscopy Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 208000008918 voyeurism Diseases 0.000 description 1
Classifications
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- 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
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Biomedical Technology (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
- Biophysics (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Endoscopes (AREA)
Abstract
The invention provides an electric connection assembly and an endoscope, relates to the field of medical instruments, and solves the problem that the prior art cannot effectively ensure that an endoscope operation part is disposable. The inner wall of the cannula is provided with a first abutting part; the elastic piece is axially abutted against the first abutting part through the second abutting part, so that the elastic piece is kept in a compressed state; the first end of the traction piece is connected with the elastic piece, and the second end of the traction piece is used for being connected with a lead connected with the first pin needle; the bolt is axially abutted with the second abutting part through the third abutting part and is in guide fit. When the plug goes deep into the cannula, the third abutting part abuts against the second abutting part along the axial direction to further compress the elastic piece, the second abutting part moves along the circumferential direction to axially misplace with the first abutting part, when the plug is pulled away from the cannula, the second abutting part passes through the side of the first abutting part and drives the traction piece to move towards the cannula orifice, and the lead is pulled to forcedly destroy the connection of the pin needle and the lead, so that the disposable use of the endoscope operation part can be effectively ensured.
Description
Technical Field
The invention relates to the field of medical equipment, in particular to an electric connection assembly 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 designs in some places due to the limitation of the use times, so that the production cost of the disposable endoscope operation part is lower than that of the reusable endoscope operation part, but the disposable endoscope operation part is still more expensive, and the disposable endoscope operation part needs to enter a human body through a natural human body channel to finish certain operations, so that the quality and performance of the disposable endoscope operation part are required to be ensured to be stable and reliable, the function of the disposable endoscope operation part can still be kept normal after being used once, and certain people can use the disposable endoscope operation part with the possibility of reuse for cleaning and sterilizing in a illegal manner.
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 an electric connection assembly and an endoscope, which are used for solving the problem that the prior art cannot effectively ensure the disposable use of an endoscope operation part.
The invention is realized by the following technical scheme:
the invention provides an electric connection assembly, which comprises a cannula, an elastic piece, a traction piece and a bolt, wherein the cannula is connected with the elastic piece; the cannula is used for mounting a first pin needle, and the inner peripheral wall of the cannula is provided with a first abutting part; the first end of the elastic piece is connected with the cannula, the second end of the elastic piece is provided with a second abutting part, and the second abutting part is abutted against the first abutting part along the axial direction so that the elastic piece is kept with a first elastic deformation amount along the axial direction of the cannula; the first end of the traction piece is connected with the elastic piece, and the second end of the traction piece is used for being connected with a lead wire connected with the first pin needle; the bolt is used for installing a second pin needle, the bolt is provided with a third abutting portion, the bolt can be detachably inserted into the insertion tube, the third abutting portion is axially abutted with the second abutting portion and forms slope guiding cooperation, wherein the bolt is deep into the insertion tube, the third abutting portion can axially push the second abutting portion to be separated from the first abutting portion and enable the axial elastic deformation amount of the elastic piece to be larger than that of the first elastic deformation amount, the second abutting portion can circumferentially move to be axially staggered with the first abutting portion under the slope guiding effect of the third abutting portion, and in the process of pulling the bolt out of the insertion tube, the elastic piece can axially drive the second abutting portion to pass through from the side of the first abutting portion and drive the second end of the traction piece to move towards the mouth of the insertion tube so as to pull the wire to break the connection between the wire and the first pin needle.
When the structure is adopted, the elastic piece is installed on the insertion pipe in an axially deformed energy storage state, the second abutting part arranged at the second end of the elastic piece is axially abutted and limited with the first abutting part arranged on the inner peripheral wall of the insertion pipe, 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 the elastic piece has the capacity of providing axial movement. The elastic piece is designed into a part which can be pushed by the bolt along the axial direction towards the depth of the insertion pipe, when the elastic piece is pushed by the bolt, the third abutting part is in axial abutting connection with the second abutting part to form guiding cooperation, under the guiding cooperation, the abutting action of the third abutting part can drive the second abutting part to move along the circumferential direction, and then the second abutting part and the first abutting part can be axially misplaced, so that a condition that the second abutting part cannot be axially abutted against the first abutting part again in an axial resetting mode to realize axial braking is created for the second abutting part. Therefore, in the process that the plug pin is pulled away from the cannula, the elastic piece can further release the energy stored in the first elastic deformation quantity, the second abutting part can move to a position farther along the axial direction, the traction piece connected to the elastic piece can be driven to move towards the orifice of the cannula, and the wire connected with the first pin needle is pulled, so that the connection between the wire and the first pin needle is broken. When the electric connection component is applied to an electric connector in an endoscope, the electric connector can enable a wire to displace after one-time plug, and the electric connection between the wire and a first pin needle is damaged, so that the aim of forcedly damaging the re-communication connection capability of the electric connector is fulfilled, and the electric connector has the function of damaging the communication connection capability after one-time plug. When the electrical connector is allocated to the endoscope operation part, the endoscope operation part has a disposable function. The manner of destroying the communication connection of the endoscope operation part structurally by one plug-in action of the electric connection assembly can effectively ensure the disposable use of the endoscope operation part.
Further, in order to better realize the invention, the following arrangement structure is adopted: the second abutting portion is provided with a second slope surface which is obliquely arranged along the circumferential direction, and the third abutting portion is axially abutted to the second slope surface to form slope surface guiding fit.
Further, in order to better realize the invention, the following arrangement structure is adopted: the third abutting portion is provided with a third slope surface which is obliquely arranged along the circumferential direction, and the third slope surface is parallel to and abuts against the second slope surface.
Further, in order to better realize the invention, the following arrangement structure is adopted: the inner peripheral wall of the insertion tube is provided with a first slope surface at the side of the first abutting part, the first slope surface is parallel to the second slope surface, and the second slope surface can form slope surface guiding against the first slope surface at the side of the first abutting part when the insertion tube is pulled away from the insertion tube by the insertion pin.
Further, in order to better realize the invention, the following arrangement structure is adopted: the first slope protrudes out of the first abutting portion along the axial direction, a gap is formed between the first slope and the first abutting portion, and the second abutting portion stretches into the gap along the axial direction.
Further, in order to better realize the invention, the following arrangement structure is adopted: the inner peripheral wall of the insertion tube is provided with an axially extending positioning key, the outer peripheral surface of the insertion pin is provided with an axially extending positioning groove, and the positioning groove is matched with the positioning key in a guiding way to be used for inserting and preventing a foolproof.
Further, in order to better realize the invention, the following arrangement structure is adopted: the end part of the positioning key is integrally connected with the first abutting part and the first slope surface.
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 insertion tube, the second abutting portion is arranged on the movable body, and the movable body is abutted to the first abutting portion along the axial direction under the elastic action of the elastic body.
Further, in order to better realize the invention, the following arrangement structure is adopted: the tube wall of the cannula is provided with a perspective window, and the elastic piece is provided with a visual structure, wherein when the axial elastic deformation of the elastic piece is the first elastic deformation, the visual structure is dislocated with the perspective window, and when the axial elastic deformation of the elastic piece is zero, the visual structure is aligned with the perspective window.
By adopting the arrangement structure, the visual structure arranged on the elastic piece can move in the axial direction when the axial elastic deformation is changed, the use state of the electric connection assembly can be visually displayed on the tube wall of the tube through matching with the perspective window arranged on the tube wall of the tube and determined in the position, the arrangement of the structure can be convenient for people to observe, the use state of the electric connection assembly can be judged without checking the position of the elastic piece by specially holding the tube to align the tube opening, the judgment speed of the use state of the electric connection assembly can be improved, and the operation part of the endoscope after the use can be effectively avoided, so that the replacement time is wasted.
The invention also provides an endoscope, which comprises an endoscope operation part main body, a connecting cable, a first pin needle and the electric connection assembly, wherein the first end of the connecting cable is connected with the endoscope operation part main body, the second end of the connecting cable is used for connecting display equipment, and the first pin needle is arranged through the insertion tube; the first end of the cable wire of the connecting cable is electrically connected with a second pin needle penetrating through the plug pin, the first pin needle is electrically connected with a built-in wire of the endoscope operation part main body, and the second end of the traction piece is connected with the built-in wire; or, the second end of the connecting cable is used for being connected with the display device through the electric connection assembly, the insertion tube is arranged at the second end of the connecting cable, the plug pin is used for being installed on the display device, the second end of the cable wire of the connecting cable is connected with the first pin needle, and the second end of the traction piece is connected with the second end of the cable wire.
The invention has the following advantages and beneficial effects:
in the invention, the elastic piece is arranged on the cannula in an axially deformed energy storage state, the second abutting part arranged at the second end of the elastic piece is axially abutted and limited with the first abutting part arranged on the inner peripheral wall of the cannula, so that the elastic piece can be braked and locked, and the elastic piece can be kept in a stable state waiting for energy release and has the capability of providing axial movement. The elastic piece is designed into a part which can be pushed by the bolt along the axial direction towards the depth of the insertion pipe, when the elastic piece is pushed by the bolt, the third abutting part is in axial abutting connection with the second abutting part to form guiding cooperation, under the guiding cooperation, the abutting action of the third abutting part can drive the second abutting part to move along the circumferential direction, and then the second abutting part and the first abutting part can be axially misplaced, so that a condition that the second abutting part cannot be axially abutted against the first abutting part again in an axial resetting mode to realize axial braking is created for the second abutting part. Therefore, in the process that the plug pin is pulled away from the cannula, the elastic piece can further release the energy stored in the first elastic deformation quantity, the second abutting part can move to a position farther along the axial direction, the traction piece connected to the elastic piece can be driven to move towards the orifice of the cannula, and the wire connected with the first pin needle is pulled, so that the connection between the wire and the first pin needle is broken. When the electric connection component is applied to an electric connector in an endoscope, the electric connector can enable a wire to displace after one-time plug, and the electric connection between the wire and a first pin needle is damaged, so that the aim of forcedly damaging the re-communication connection capability of the electric connector is fulfilled, and the electric connector has the function of damaging the communication connection capability after one-time plug. When the electrical connector is allocated to the endoscope operation part, the endoscope operation part has a disposable function. The manner of destroying the communication connection of the endoscope operation part structurally by one plug-in action of the electric connection assembly can effectively ensure the disposable use of the endoscope operation part.
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 an electrical connection assembly according to the present invention during assembly;
FIG. 2 shows the end face configuration of the cannula, spring and outer insulator assembly;
fig. 3 is a cross-sectional structure of the electrical connector for connecting a connecting cable of the present invention (the cable wires and the pulling body are shown in bold solid lines);
FIG. 4 is a schematic view of the structure of the latch;
FIG. 5 is a schematic view of the cannula;
FIG. 6 shows the structure of the electrical connection assembly when the plug is inserted into the insertion tube and the second abutting portion axially abuts against the first abutting portion (the movable body is located at the first position);
FIG. 7 shows the structure of the electrical connection assembly when the second contact portion exits the notch;
FIG. 8 shows the structure of the movable body in the electrical connection assembly in the third position;
FIG. 9 shows the connection of the elastic member to the joint base;
fig. 10 shows a structure of an endoscope operation portion main body and a connection cable of the present invention.
Marked in the figure as:
1. a cannula; 1a, an outer tube; 1b, a connector seat; 1b1, a semicircular groove; 11. a first abutting portion; 12. a first slope; 13. a notch; 14. a positioning key; 15. a perspective window; 16. perforating; 17. a ring groove;
2. an elastic member; 2a, an elastomer; 2b, a movable body; 21. a second abutting portion; 211. a second slope; 22. a visual structure; 23. an avoidance structure;
3. a traction member;
4. a plug pin; 41. a third abutting portion; 411. a third slope; 42. a positioning groove;
5. a first pin needle;
6. an outer insulating sleeve;
7. an endoscope operation unit main body;
8. a connection cable; 81. a cable wire.
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.
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 the embodiments of the present application, "proximal" and "distal" refer to the distal and proximal positions of the endoscope operating section relative to the user when the insertion tube 1 of the electrical connector to which it is attached is inserted into the insertion pin 4 in the 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, a bolt 4 and a cannula 1 belong to a part of two plugs (a male plug and a female plug) in a connector, the bolt 4 and the cannula 1 are provided with positions for penetrating pin needles, the pin needles penetrating through the cannula 1 can be male pin needles or female pin needles, and correspondingly, pin needles arranged on the bolt 4 are female pin needles or male pin needles, and the pin needles penetrating through the cannula 1 and the pin needles penetrating through the bolt 4 are distinguished by a first pin needle 5 and a 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 inventor herein devised an electrical connection assembly for use in an electrical connector of an endoscope operation section from below a communication structure employed by the endoscope operation section, designed as a disposable assembly, and provided an endoscope employing the electrical connector.
In one aspect, the present application provides an electrical connection assembly, which is used as a main component of an electrical connector, and can destroy a communication connection function of the electrical connector through a single plugging action, so as to achieve the purpose of disposable use, thereby effectively ensuring that an endoscope operation part of the electrical connector adopting the electrical connection assembly can be destroyed after disposable use and cannot be reused. As shown in fig. 1 to 9, the following structure is provided:
The electric connection assembly comprises a cannula 1, an elastic piece 2, a traction piece 3 and a plug pin 4.
The insertion tube 1 belongs to a part of one end of the electrical connector, which can be structurally improved or redesigned based on the existing electrical connector, but at least ensures that the insertion tube 1 and the insertion pin 4 can be connected and disconnected according to the existing axial insertion formula.
The cannula 1 provides an axial insertion hole, the distal end of which forms the mouth of the cannula 1, and the proximal end of the cannula 1 is plugged such that the insertion hole is blind. The insertion hole is used for receiving the bolt 4 matched with the hole type of the insertion hole, the hole type of the insertion hole can be round, but also can be rectangular, oblong, triangular and the like, and the blind end of the insertion hole is used for penetrating the first pin needle 5. The inner wall of the tube of the cannula 1, i.e. the wall of the insertion hole, is formed with a first abutment 11, the first abutment 11 protruding radially, by means of which the proximal end is axially abutted against the elastic member 2 for axial braking of the elastic member 2.
The elastic member 2 can store energy through self deformation, and release energy until returning to a natural state after the external force is released. In this embodiment, the elastic member 2 is integrally disposed in the insertion hole and is in an axially deformed energy storage state. The proximal end (first end) of the elastic member 2 is fixedly connected to the cannula 1, the distal end (second end) of the elastic member 2 is provided with a second abutting portion 21 extending along the axial direction, and the second abutting portion 21 is located at a first position and abuts against the first abutting portion 11 along the axial direction to realize axial limiting, so that the elastic member 2 maintains a first elastic deformation amount along the axial direction of the cannula 1.
The distal end (first end) of the traction member 3 is located in the insertion hole and connected to a portion of the elastic member 2 which can be moved in the axial direction according to the change of the stored energy, and the proximal end (second end) of the traction member 3 is located outside the insertion hole in a state of being not connected to other components, and is ready for connection with a wire connected to a terminal of the first pin needle 5 inserted in Kong Mangduan. The proximal end of the retractor 3 is axially movable with movement of the distal end.
The plug 4 belongs to one part of the electrical connector at the other end, and can be structurally improved based on the existing structure. The cross section shape of the bolt 4 is matched with the hole type of the insertion hole, and is used for installing a second pin needle which is inserted and matched with the first pin needle 5. The plug 4 is detachably inserted into the insertion hole of the insertion tube 1, can reciprocate in the axial direction, and can be inserted into or withdrawn from the insertion hole. The plug 4 is provided with a third abutting portion 41, the third abutting portion 41 and the second abutting portion 21 abut against each other in the axial direction, and at the same time, the third abutting portion 41 and the second abutting portion 21 abut against each other to form a guide engagement that allows the second abutting portion 21 to move in the circumferential direction under the axial abutment of the third abutting portion 41.
During the process of the plug 4 penetrating into the cannula 1, the third abutting portion 41 can axially abut against the second abutting portion 21 to be separated from the first abutting portion 11, the axial elastic deformation amount of the elastic member 2 is larger than the first elastic deformation amount, and the second abutting portion 21 can circumferentially move under the guiding action of the third abutting portion 41 to axially deviate from the first abutting portion 11.
In the process of withdrawing the plug 4 from the cannula 1, the elastic element 2 is reset, so that the second abutting part 21 can be driven to pass through the side of the first abutting part 11 along the axial direction and drive the second end of the traction element 3 to move towards the orifice of the cannula 1.
The elastic member 2 is installed on the insertion tube 1 in an axially deformed energy storage state, and the second abutting part 21 arranged at the second end of the elastic member 2 is in axial abutting limit with the first abutting part 11 arranged on the inner peripheral wall of the insertion tube 1, so that the elastic member 2 can be braked and locked, can be kept in a stable state waiting for energy release, and has the capability of providing axial movement. The elastic member 2 is designed as a member that can be pushed by the latch 4 along the axial direction toward the depth of the cannula 1, when the elastic member 2 is pushed by the latch 4, the third abutting portion 41 abuts against the second abutting portion 21 along the axial direction and forms a guiding fit, under the guiding fit, the pushing action of the third abutting portion 41 can drive the second abutting portion 21 to move along the circumferential direction, so that the second abutting portion 21 and the first abutting portion 11 are dislocated in the axial direction, and a condition that the second abutting portion 21 cannot axially abut against the first abutting portion 11 again through an axial resetting mode is created. In this way, during the process of pulling the latch 4 away from the cannula 1, the elastic member 2 will further release the energy stored in the first elastic deformation amount, so that the second abutting portion 21 can move to a further position along the axial direction, so that the traction member 3 connected to the elastic member 2 can be driven to move towards the orifice of the cannula 1, and a pulling effect is exerted on the wire connected to the first pin needle 5, so as to break the connection between the wire and the first pin needle 5.
When the electric connection component is applied to an electric connector in an endoscope, the electric connector can enable a wire to displace after one-time plug, and the electric connection between the wire and the first pin 5 is damaged, so that the aim of forcedly damaging the re-communication connection capability of the electric connector is fulfilled, and the electric connector has the function of damaging the communication connection capability after one-time plug. When the electrical connector is allocated to the endoscope operation part, the endoscope operation part has a disposable function. Compared with the prior art that the use of the endoscope operation part is limited by a self-destruction program, the method of structurally destroying the communication connection of the endoscope operation part by one-time plug-in action of the electric connection assembly can more effectively ensure the disposable use of the endoscope operation part.
According to some alternative embodiments, one specific structure of the cannula 1 is shown in fig. 1, 2, 3, 5, 6, 7, 8 and 9, the cannula 1 comprising two separate parts: an outer tube 1a and a joint seat 1b. The joint seat 1b is tightly matched with the outer tube 1a in a shaft hole matching mode, so that the joint seat 1b seals the proximal end of the outer tube 1a, and the through hole of the outer tube 1a forms an insertion hole with one end sealed. The pipe wall of the outer pipe 1a is provided with a clamping structure close to the orifice of the insertion hole (the far end), and the clamping structure is used for being matched with a clamping structure arranged on the pipe wall of the plug pin accommodating pipe for accommodating the plug pin 4, so that an axial limiting effect is achieved in a clamping mode after the insertion pipe 1 and the plug pin 4 are inserted in place.
According to some alternative embodiments, as shown in fig. 1, 2, 5, 6, 7 and 8, a positioning key 14 extending axially from the orifice towards the blind end is provided on the inner peripheral wall of the outer tube 1a, i.e. on the wall of the insertion hole. As shown in fig. 1, 4, 5, 6 and 7, the outer circumferential surface of the plug 4 is provided with a positioning groove 42 penetrating in the axial direction, and the positioning groove 42 is in guiding fit with the positioning key 14 for plugging in the foolproof. When the insertion tube 1 is aligned with the insertion pin 4, the positioning key 14 is aligned with the positioning groove 42, and after the insertion pin 4 is inserted into the insertion hole, the positioning key 14 and the positioning groove 42 form guiding fit along the axial direction. The third abutting portion 41 is formed in the positioning groove 42.
According to some alternative embodiments, the first abutment 11 is integrally formed with the positioning key 14 as an extension of the positioning key 14 at the proximal end.
According to some alternative embodiments, one specific structure of the elastic member 2 is shown in fig. 6 to 9, and the elastic member 2 includes two independent components: an elastic body 2a and a movable body 2b. The two ends of the elastic body 2a are respectively connected with the movable body 2b and the cannula 1, the movable body 2b is driven by the elastic body 2a, the second abutting part 21 is formed on the distal end of the movable body 2b, and the movable body 2b is axially aligned and abutted on the first abutting part 11 under the action of the elastic force of the elastic body 2a to realize axial braking.
According to some alternative embodiments, the latch 4 and the elastic element 2 adopt slope guiding, specifically, the elastic element 2 is provided with a second slope 211 on the distal end face of the second abutting portion 21 of the movable body 2b, the second slope 211 is arranged in a circumferentially inclined extending manner, and the third abutting portion 41 at the proximal end of the latch 4 abuts against the second slope 211 along the axial direction to form slope guiding, wherein the third abutting portion 41 may be an axial protrusion, the protrusion may be a cylinder or a strip and the like, and the end of the protrusion may be a square head or a circular arc head. Preferably, in addition to the second slope 211 provided at the distal end of the movable body 2b, a third slope 411 is provided at the proximal end of the third abutment 41 of the latch 4, the third slope 411 being provided so as to extend obliquely in the circumferential direction, and the third slope 411 being parallel to and abutting against the second slope 211 to form a slope guide in which the two slopes cooperate.
According to some alternative embodiments, as shown in fig. 5 to 8, the inner peripheral wall of the cannula 1 is provided with a first abutment 11 and a first ramp 12 arranged and connected in sequence along the periphery Xiang Yi, the first ramp 12 extending obliquely in the circumferential direction. The first slope 12 is parallel to the second slope 211, wherein the second slope 211 can prop against the first slope 12 at the side of the first propping part 11 to form slope guiding when the plug pin 4 is pulled out of the insertion tube 1.
According to some alternative embodiments, the end of the positioning key 14 is integrally connected with the first abutment 11 and the first ramp 12.
According to some alternative embodiments, as shown in fig. 5-8, the first slope 12 protrudes from the first abutment 11 along the axial direction, a gap 13 is formed between the first slope and the first abutment 11, and at the gap 13, the proximal end of the first abutment 11 provides a circumferential stop surface, and the first slope 12 provides an axial stop surface. The second abutting portion 21 axially extends into the notch 13, the second abutting portion 21 abuts against an axial stop surface under the action of elasticity of the elastic piece 2 and is axially braked by the notch 13, and the axial stop surface is located on one side of the second abutting portion 21 in the circumferential direction and limits rotation of the second abutting portion 21 in the circumferential direction.
The second abutting portion 21 of the movable body 2b needs to be partially structured outside the notch 13 in the circumferential direction or the radial direction so that the plug pin 4 can abut against the second abutting portion 21 through the third abutting portion 41 when inserted into the insertion hole. In the present embodiment, it is preferable to locate a part of the structure of the second contact portion 21 outside the notch 13 in the radial direction. As shown in fig. 5 to 7, the second abutting portion 21 has a thickness in the radial direction larger than the thicknesses of the first abutting portion 11 and the positioning key 14, and abuts against the third abutting portion 41 by a portion protruding in the radial direction.
According to some alternative embodiments, as shown in fig. 7-9, a dodging structure 23 axially offset from the first abutment 11 is further disposed on one side of the movable body 2b of the elastic member 2 in the circumferential direction of the second abutment 21, and the dodging structure 23 can allow the first abutment 11 to enter into the dodging structure in the axial direction, so that the second abutment 21 can move further toward the distal end of the cannula 1 laterally past the first abutment 11 under the action of releasing energy of the elastic member 2.
The second abutment portion 21 can axially withdraw from the notch 13 when being pushed by the third abutment portion 41, the axial stop surface limits the turnover of the second abutment portion 21 in the process of withdrawing from the notch 13, after withdrawing from the notch 13, the second abutment portion 21 can move circumferentially to axially align with the first slope 12 when being abutted against the third abutment portion 41, and the second abutment portion 21 can move circumferentially in contact with the first slope 12 and guided by the first slope 12 when moving towards the aperture of the insertion hole, so that the avoidance structure 23 axially aligns with the first abutment portion 11.
According to some alternative embodiments, as a first preferred embodiment of the movable body 2b, the movable body 2b is provided as a plate-like structure having a circumferential length smaller than one half of the circumference of the insertion hole. When the insertion hole is a circular hole, the movable body 2b may be an arc plate, the outer arc surface of which is arranged opposite to the hole wall of the insertion hole and is mutually clung, and the axis of the movable body is coincident with the axis of the insertion hole. When the movable body 2b is a plate-like structural member, the escape structure 23 corresponds to a space virtual structure on the side of the movable body 2b, and is a non-solid structure.
As a second preferred embodiment of the movable body 2 b. As shown in fig. 5 to 9, the movable body 2b is provided as a pipe body coaxially fitted with the insertion hole, and at this time, the insertion hole should be provided as a circular hole, and the cross-sectional shape of the movable body 2b is, of course, identical to the cross-sectional shape of the insertion hole. The second abutment portion 21 is located on the distal end of the movable body 2b, protruding in the axial direction. The movable body 2b is provided with an axially extending avoidance structure 23 on the side of the second abutting portion 21, and the avoidance structure 23 may be a groove formed on the outer wall or may be a notch, so that after the avoidance structure 23 is aligned with the first abutting portion 11, when the movable body 2b moves axially towards the orifice of the insertion hole under the action of the elastic body 2a, the first abutting portion 11 and the positioning key 14 may enter the avoidance structure 23, so that the axial movement of the movable body 2b is not affected. In the second preferred embodiment, the movable body 2b of the tube body is coaxially sleeved with the insertion hole, so that the axial movement and circumferential rotation of the movable body 2b can be stabilized, and the blocking in the movement process can be avoided.
In some alternative embodiments, as shown in fig. 6 to 9, the elastic body 2a specifically adopts a spiral compression spring, the spiral compression spring is coaxially arranged with the insertion hole, the proximal end of the spiral compression spring is fixed on the insertion tube 1, and the other end of the spiral compression spring abuts against the proximal end of the movable body 2 b.
According to some alternative embodiments, as shown in fig. 3, the blind end of the insertion hole is provided with an axially extending annular groove 17, and the helical compression spring is accommodated in the annular groove 17, 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 annular groove 17 for accommodating the helical compression spring. The spiral pressure spring is accommodated in the annular groove 17 arranged in the insertion Kong Mangduan, the blind end is utilized to ensure the stable installation of the first pin needle 5, so that the spiral pressure spring occupies little or no space of the insertion hole, the electric connection assembly can be designed to be shorter under the condition of having related functions, and the use amount of the traction piece 3 can be reduced at least, so that the production cost is reduced.
According to some alternative embodiments, the traction element 3 may be a rope, a chain, a rod or a plate, but preferably, as shown in fig. 3, a rope is used, because when the traction element 3 is set to be a rope, the traction element 3 can well ensure that only a unidirectional pulling effect is generated on the connected cable wire 81, and the situation that the cable wire 81 is damaged before use or the cable wire 81 is torn before use due to the fact that the traction element 3 pulls the connected cable wire 81 to generate corresponding displacement in the process that the elastic element 2 is pushed by the bolt 4 can be avoided.
According to some alternative embodiments, the cannula 1 is provided with perforations 16, the perforations 16 communicating the insertion holes with the outside for the threading of the pulling member 3. As shown in fig. 3, 5 to 7 and 9, the through hole 16 penetrates through the blind end of the insertion hole in the axial direction, specifically, an axial semicircular groove 1b1 is formed on the outer circumferential surface of the joint seat 1b, and the through hole 16 is formed between the semicircular groove 1b1 and the inner wall of the outer tube 1 a. Of course, perforations 16 may also be formed in the wall of the outer tube 1a, such as by placing the insertion holes in radial communication with the outside of the outer tube 1a, but this would allow the retractor 3 to bypass from the outside of the outer tube 1a to the proximal end of the hub 1 b. Therefore, the perforation 16 is preferably penetrated through the blind end of the insertion hole along the axial direction, so that the distance from the inside of the insertion hole to the outside of the insertion tube 1, which is positioned at the connection point between the first pin needle 5 and the lead, is shorter, the use amount of the traction element 3 can be saved, the space in the insertion hole is saved, in addition, the direction of the perforation 16 is consistent with the axial moving direction of the elastic element 2, the traction element 3 can be well ensured to smoothly shuttle in the perforation 16, the condition that the length of the traction element 3 positioned outside the insertion tube 1 cannot be reduced or cannot be reduced to a specified length capable of ensuring breaking the connection welding point between the pin needle and the lead or ensuring the stretch-breaking lead due to the movement blocking of the traction element 3 can be effectively avoided, and the opportunity of being reused is avoided, so that the disposable operation part of the endoscope can be effectively ensured.
According to alternative embodiments, as shown in fig. 6-9, a perspective window 15 is provided on the wall of the outer tube 1a of the cannula 1, and the perspective window 15 may be a perforation penetrating the wall of the outer tube 1a, or may be a transparent solid part, such as a window in which a transparent plastic member is mounted. The elastic member 2 is provided with a visual structure 22, the visual structure 22 may be a red or other dot-shaped or linear pattern layer with warning effect coated on the outer peripheral surface of the elastic body 2a or the movable body 2b, or may be a groove structure recessed on the outer peripheral surface, and the groove structure may be coated with a red or other color-developing pattern layer with warning effect, wherein the visual structure 22 is preferably arranged on the movable body 2 b. When the axial elastic deformation amount of the elastic member 2 is the first elastic deformation amount, the visual structure 22 is dislocated with the transparent window 15, and when the axial elastic deformation amount of the elastic member 2 is zero, the visual structure 22 is aligned with the transparent window 15. The visual structure 22 arranged on the elastic piece 2 can move in the axial position when the axial elastic deformation quantity is changed, and can intuitively display the use state of the electric connection component on the tube wall of the cannula 1 through matching with the perspective window 15 arranged on the tube wall of the cannula 1 in a position determining mode.
According to some alternative embodiments, as shown in fig. 1 and 3, a section of the outer tube 1a near the proximal end is sleeved with an outer insulation sleeve 6, and the traction piece 3 and the first pin 5 on the outer tube 1a are wrapped by the outer insulation sleeve 6 so as to provide insulation protection for the traction piece 3 and the first pin 5, so that the traction piece 3 and the first pin 5 are not easily damaged in advance, meanwhile, the outer insulation sleeve 6 can also provide a plugging stress point, and in addition, the repair difficulty of a connecting welding point of the first pin 5 and a wire which are damaged in the outer insulation sleeve 6 or the repair difficulty of the wire breakpoint can be improved, so that the disposable operation part of the endoscope can be more effectively ensured.
In another aspect, the present application also provides an endoscope, in particular, using the following arrangement:
as shown in fig. 3 and 10, the endoscope includes an endoscope operation portion main body 7, a connection cable 8, a first pin needle 5, a display device, and an electrical connector, wherein the electrical connector employs an electrical connection assembly, and at least one first pin needle 5 is provided at a blind end of an insertion hole of a cannula 1 of the electrical connection assembly.
The endoscope operation portion body 7 and the display device are connected by a connection cable 8, and the connection cable 8 and the endoscope operation portion body 7 or the display device are connected by the electrical connector of the present application. Some of the endoscope operation section main body 7 and the connection cable 8 are detachable, and some are not detachable, so that the position of the electrical connector on the endoscope operation section can be specifically selected according to the removability of the connection cable 8.
As shown in fig. 3 and 10, when the endoscope operation section main body 7 and the connection cable 8 are detachable, the electrical connector of the above embodiment is provided at the point a. Specifically, the first end of the connection cable 8 is connected to the endoscope operation section main body 7, and the second end is used for connection to a display device. The first end of the connecting cable 8 is detachably connected with the endoscope operation part main body 7 through an electric connector adopting an electric connection assembly, the insertion tube 1 and the plug pin 4 are respectively arranged at the endoscope operation part main body 7 and the first end of the connecting cable 8, the first end of the cable wire 81 of the connecting cable 8 is electrically connected with a second pin needle penetrating through the plug pin 4 in a welding, crimping, gluing connection and other modes, the end of the first pin needle 5 positioned at the outer side of the insertion tube 1 is electrically connected with a built-in wire of the endoscope operation part main body 7 in a welding, crimping, gluing connection and other modes, the second end of the traction piece 3 is fixedly connected with the built-in wire in a welding or bolting mode and other modes, and the connecting point is close to a connecting welding point of the built-in wire and the first pin needle 5.
When the endoscope operation section main body 7 and the connection cable 8 are not detachable, the electrical connector of the above embodiment is disposed at the point b. Specifically, the second end of the connecting cable 8 is used for being connected with the display device through the electric connection component, the insertion tube 1 is arranged at the second end of the connecting cable 8, the bolt 4 is used for being installed on the display device, as shown in fig. 3, the second end of the cable wire 81 of the connecting cable 8 is welded with the end part of the first pin 5 outside the insertion tube 1, the second end of the traction member 3 is fixedly connected with the second end built-in wire of the cable wire 81 in a manner of welding or bolting, and the connection point is close to a connection welding point of the cable wire 81 and the first pin 5.
Among the electrical connectors employed in endoscopes, electrical connection assemblies are employed. The elastic member 2 is installed on the insertion tube 1 in an axially deformed energy storage state, and the second abutting part 21 arranged at the second end of the elastic member 2 is in axial abutting limit with the first abutting part 11 arranged on the inner peripheral wall of the insertion tube 1, so that the elastic member 2 can be braked and locked, can be kept in a stable state waiting for energy release, and has the capability of providing axial movement. The elastic member 2 is designed as a member that can be pushed by the latch 4 along the axial direction toward the depth of the cannula 1, when the elastic member 2 is pushed by the latch 4, the third abutting portion 41 abuts against the second abutting portion 21 along the axial direction and forms a guiding fit, under the guiding fit, the pushing action of the third abutting portion 41 can drive the second abutting portion 21 to move along the circumferential direction, so that the second abutting portion 21 and the first abutting portion 11 are dislocated in the axial direction, and a condition that the second abutting portion 21 cannot axially abut against the first abutting portion 11 again through an axial resetting mode is created. In this way, during the process of pulling the latch 4 away from the cannula 1, the elastic member 2 will further release the energy stored in the first elastic deformation amount, so that the second abutting portion 21 can move to a further position along the axial direction, so that the traction member 3 connected to the elastic member 2 can be driven to move towards the orifice of the cannula 1, and a pulling effect is exerted on the wire connected to the first pin needle 5, so as to break the connection between the wire and the first pin needle 5. The electric connector is provided with a disposable function on the endoscope operation part, and the manner of destroying the communication connection of the endoscope operation part structurally through one inserting and pulling action of the electric connection component is more effective than the manner of limiting the use of the endoscope operation part through a self-destruction program in the prior art, so that the disposable use of the endoscope operation part can be ensured more effectively.
Before use, as shown in fig. 5 and 6, the movable body 2b is located at the first position, the second abutting portion 21 thereof extends into the notch 13 between the first abutting portion 11 and the first slope 12, and the second abutting portion 21 abuts against the circumferential stop surface by the action of the elastic body 2a, thereby realizing axial braking.
In use, when the endoscope operation portion main body 7 and the display device are connected by the electrical connector, and the electrical connector using the electrical connection assembly of the present invention is used for connection, the plug 4 is inserted into the insertion hole, the third abutting portion 41 abuts against the second sloping surface 211 of the second abutting portion 21 by the third sloping surface 411, then the third abutting portion 41 abuts against the second abutting portion 21 of the movable body 2b in the axial direction, the elastic body 2a is compressed, at this time, the circumferential stop surface limits the second abutting portion 21 to the circumference Xiang Zhuaidong, and when the second abutting portion 21 moves downward to the second position, as shown in fig. 7, the second abutting portion 21 is separated from the circumferential stop surface, that is, the second abutting portion 21 is withdrawn from the notch 13, the elastic force of the elastic body 2a abuts against the second sloping surface 211 of the second abutting portion 21 against the third sloping surface 411 of the third abutting portion 41, and the second abutting portion 21 turns around in the circumferential direction against the friction force until the movable body 2b abuts against the proximal end of the plug 4. Then, the second abutment portion 21 is axially displaced from the notch 13 and axially aligned with the first slope 12 on the first abutment portion 11. After the bolt 4 is inserted in place, the electrical connection is completed through the second pin needle penetrating through the bolt 4 and the first pin needle 5 penetrating through the joint seat 1b, and the movable body 2b is located at the second position.
After the use is completed, the bolt 4 is gradually pulled out of the insertion hole, the movable body 2b moves towards the opening of the insertion hole along the axial direction under the axial thrust of the elastic body 2a, then the second slope 211 of the second abutting part 21 contacts with the first slope 12, the second abutting part 21 rotates along the circumferential direction against the friction force, the avoidance structure 23 is axially aligned with the first abutting part 11 and the positioning key 14, then the first abutting part 11 and the positioning key 14 gradually enter into the avoidance structure 23, finally, the movable body 2b reaches the third position as shown in fig. 8, at this time, the movable body 2b drives the traction piece 3 to displace the lead to be completed, so that the welding point of the lead and the first pin 5 is destroyed or the lead is directly pulled off. So that the endoscope operation section main body 7 using the plug of the present invention cannot be reused.
The foregoing is merely illustrative embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think about variations or substitutions within the technical scope of the present invention, and the invention should be covered.
Claims (10)
1. An electrical connection assembly, characterized in that: comprising the following steps:
a cannula (1) for mounting a first pin needle, the inner peripheral wall of the cannula (1) being provided with a first abutment (11);
An elastic member (2) having a first end connected to the insertion tube (1) and a second end provided with a second abutting portion (21), the second abutting portion (21) abutting against the first abutting portion (11) in the axial direction, and the elastic member (2) being held with a first elastic deformation amount in the axial direction of the insertion tube (1);
a traction element (3) with a first end connected to the elastic element (2) and a second end for connecting a wire connected to the first pin needle;
the bolt (4), it is used for installing the second pin needle, bolt (4) are provided with third butt portion (41), bolt (4) can dismantle cartridge in intubate (1), third butt portion (41) with second butt portion (21) are along axial butt and form domatic direction cooperation, wherein, in-process in intubate (1) is gone deep to bolt (4), third butt portion (41) can follow the axial and push away second butt portion (21) in order to break away from first butt portion (11) and make the axial elasticity deformation volume of elastic component (2) is greater than first elasticity deformation volume, second butt portion (21) can be under with slope direction effect of third butt portion (41) along the circumference remove in order to with first butt portion (11) axial dislocation bolt (4) take out in-process in elastic component (2) can follow axial butt portion (21) and pull away from second butt portion (11) and drive one side of pulling wire (3) with the second pin portion (11) is followed to pull away from second butt portion (3) and is connected with the wire side.
2. The electrical connection assembly of claim 1, wherein: the second abutting portion (21) is provided with a second slope (211) which is obliquely arranged along the circumferential direction, and the third abutting portion (41) is abutted against the second slope (211) along the axial direction to form the slope guiding fit.
3. The electrical connection assembly of claim 2, wherein: the third abutting portion (41) is provided with a third slope surface (411) which is obliquely arranged along the circumferential direction, and the third slope surface (411) is parallel to and abuts against the second slope surface (211).
4. An electrical connection assembly according to claim 2 or 3, wherein: the inner peripheral wall of the insertion tube (1) is provided with a first slope (12) at the side of the first abutting part (11), the first slope (12) is parallel to the second slope (211), and the second slope (211) can form slope guiding by abutting against the side of the first abutting part (11) and the first slope (12) when the plug pin (4) is pulled away from the insertion tube (1).
5. The electrical connection assembly of claim 4, wherein: the first slope (12) axially protrudes out of the first abutting portion (11), a gap (13) is formed between the first slope and the first abutting portion (11), and the second abutting portion (21) axially stretches into the gap (13).
6. The electrical connection assembly of claim 4, wherein: the inner peripheral wall of the insertion tube (1) is provided with an axially extending positioning key (14), the outer peripheral surface of the plug pin (4) is provided with an axially extending positioning groove (42), and the positioning groove (42) is in guide fit with the positioning key (14) for plug-in foolproof.
7. The electrical connection assembly of claim 6, wherein: the end part of the positioning key (14) is integrally connected with the first abutting part (11) and the first slope surface (12).
8. The electrical connection assembly of claim 1, wherein: the elastic piece (2) comprises an elastic body (2 a) and a movable body (2 b), the elastic body (2 a) is used for connecting the movable body (2 b) with the insertion tube (1), the second abutting portion (21) is arranged on the movable body (2 b), and the movable body (2 b) is abutted to the first abutting portion (11) along the axial direction under the elastic action of the elastic body (2 a).
9. The electrical connection assembly of claim 1, wherein: the catheter is characterized in that a perspective window (15) is arranged on the catheter wall of the cannula (1), a visual structure (22) is arranged on the elastic piece (2), and when the axial elastic deformation of the elastic piece (2) is the first elastic deformation, the visual structure (22) is dislocated with the perspective window (15), when the axial elastic deformation of the elastic piece (2) is zero, the visual structure (22) is aligned with the perspective window (15).
10. An endoscope, characterized in that: the endoscope operation part comprises an endoscope operation part main body (7), a connecting cable (8), a first pin needle (5) and the electrical connection assembly of any one of claims 1-9, wherein the first end of the connecting cable (8) is connected with the endoscope operation part main body (7), the second end is used for connecting display equipment, and the first pin needle (5) penetrates through the insertion tube (1);
the first end of the connecting cable (8) is detachably connected with the endoscope operation part main body (7) through the electric connection assembly, the insertion tube (1) and the plug pin (4) are respectively arranged at the first ends of the endoscope operation part main body (7) and the connecting cable (8), the first end of a cable wire (81) of the connecting cable (8) is electrically connected with a second pin needle penetrating through the plug pin (4), the first pin needle (5) is electrically connected with a built-in wire of the endoscope operation part main body (7), and the second end of the traction piece (3) is connected with the built-in wire;
or alternatively, the first and second heat exchangers may be,
the second end of connecting cable (8) is used for being connected with display device through electric connection subassembly, intubate (1) set up in the second end of connecting cable (8), bolt (4) are used for installing on display device, the second end of cable wire (81) of connecting cable (8) with first pin needle (5) are connected, the second end of traction element (3) with the second end of cable wire (81) is connected.
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| CN202310864187.9A CN116613560B (en) | 2023-07-14 | 2023-07-14 | Electrical connection assembly and endoscope |
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| CN202310864187.9A CN116613560B (en) | 2023-07-14 | 2023-07-14 | Electrical connection assembly and endoscope |
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| JP2013240409A (en) * | 2012-05-18 | 2013-12-05 | Fujifilm Corp | Endoscope, endoscope apparatus, and endoscope system |
| CN111295146A (en) * | 2017-10-30 | 2020-06-16 | 爱惜康有限责任公司 | Surgical stapling instrument configured to manipulate tissue using mechanical and electrical power |
| CN108551055A (en) * | 2018-05-31 | 2018-09-18 | 朱景艳 | A kind of charging gun with dragging defencive function |
| CN217114853U (en) * | 2021-12-09 | 2022-08-02 | 金华送变电工程有限公司 | Grounding device for clamping cable terminal rod |
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