CN116613561B - Electrical connector and endoscope - Google Patents
Electrical connector and endoscope Download PDFInfo
- Publication number
- CN116613561B CN116613561B CN202310864193.4A CN202310864193A CN116613561B CN 116613561 B CN116613561 B CN 116613561B CN 202310864193 A CN202310864193 A CN 202310864193A CN 116613561 B CN116613561 B CN 116613561B
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- insertion hole
- guide groove
- spiral guide
- electrical connector
- sliding block
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- 238000003780 insertion Methods 0.000 claims abstract description 139
- 230000037431 insertion Effects 0.000 claims abstract description 139
- 238000000034 method Methods 0.000 claims abstract description 9
- 230000009471 action Effects 0.000 claims abstract description 7
- 230000008569 process Effects 0.000 claims abstract description 6
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 230000004323 axial length Effects 0.000 claims description 3
- 238000004891 communication Methods 0.000 description 10
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 10
- 238000009413 insulation Methods 0.000 description 6
- 230000000149 penetrating effect Effects 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 206010011409 Cross infection Diseases 0.000 description 2
- 206010029803 Nosocomial infection Diseases 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001839 endoscopy Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000002560 therapeutic procedure Methods 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
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- 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
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- 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
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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
- H01R13/62—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
Abstract
The application provides an electrical connector and an endoscope, relates to the field of medical instruments, and solves the problem that the prior art cannot effectively ensure the disposable use of an endoscope operation part. The wall of the insertion hole of the insertion pipe is provided with a spiral guide groove which spirally extends around the axis of the insertion hole and has a closed top end and an open bottom end, and the blind end of the insertion hole is used for connecting a pin needle; the elastic piece is axially and compressively arranged in the insertion tube, the elastic piece is provided with a sliding block, and the sliding block extends into the spiral guide groove to be in guide fit with the spiral guide groove and is abutted to the top end of the spiral guide groove; the top end of the traction body is connected with the elastic piece, and the bottom end of the traction body is positioned outside the cannula and is used for connecting wires connected with the pin needles. The elastic piece of the application can be axially compressed towards the insertion Kong Mangduan under the action of external force, in the process, the sliding block can be guided by the spiral guide groove to axially rotate around the opening of the sliding block and withdraw from the opening of the spiral guide groove, after the external force is immediately withdrawn, the sliding block can be axially moved towards the orifice of the insertion hole, and the bottom end of the traction body can be moved to a position closer to the orifice of the insertion hole so as to drag the lead to break the connection with the pin needle.
Description
Technical Field
The application relates to the field of medical equipment, in particular to 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 or a host 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 connecting cable by adopting a 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.
Since 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 an instrument in and out, there are cases where the endoscope operation portion is contaminated. Endoscopy or treatment costs are high, and generally, it is required that the endoscope operation section is reusable, and although the reused endoscope operation section is sterilized, cross infection cannot be completely avoided, and in the case of high hygienic requirements, it is required that the endoscope operation section is disposable, that is, the endoscope operation section used each time is completely new and unused, so as to eliminate the risk of cross infection. This results in a disposable endoscope operating section. The disposable endoscope operation part is correspondingly improved in terms of materials and designs in some places, 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 because the endoscope operation part needs to enter a human body through a natural human body channel to complete certain operations, the quality and the performance of the endoscope operation part need to be ensured to be stable and reliable, the function of the disposable endoscope operation part can still be kept normal after the disposable endoscope operation part is used once, and therefore, the disposable endoscope operation part is intentionally or unintentionally reused.
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 application aims to design an electrical connector 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 application is realized by the following technical scheme:
the application provides an electrical connector, which comprises a cannula, an elastic piece and a traction body; the insertion tube is provided with an axial insertion hole with a blind end at the bottom end, the wall of the insertion hole is provided with a spiral guide groove which spirally extends around the axis of the insertion hole, the top end of the spiral guide groove is closed, the bottom end of the spiral guide groove is open, and the blind end of the insertion hole is used for connecting a pin needle; the elastic piece is axially arranged in the insertion tube in a compressed mode, and is provided with a sliding block which extends into the spiral guide groove to be matched with the spiral guide groove in a guiding mode and is abutted to the top end of the spiral guide groove; the top end of the traction body is connected with the elastic piece, the bottom end of the traction body is positioned outside the insertion tube and is used for connecting a lead connected with a pin needle connected with the blind end of the insertion hole; the elastic piece can be axially compressed further towards the insertion Kong Mangduan under the action of external force, in the process, the sliding block can be guided by the spiral guide groove to rotate around the axial direction and withdraw from the opening of the spiral guide groove, after the external force is withdrawn in time, the sliding block can axially move towards the hole opening of the insertion hole, and the bottom end of the traction body can move to a position closer to the hole opening of the insertion hole so as to pull the lead to break the connection between the lead and the pin needle.
When the structure is adopted, the bottom end of the traction body is used for connecting a lead connected with the pin needle. The elastic piece is matched with the spiral guide groove through the sliding block and limited by the top end of the spiral guide groove, so that the elastic piece can be kept in an axially compressed state to wait for unlocking, and the bottom end opening of the spiral guide groove enables the elastic piece to be further compressed along the axial direction so that the sliding block can be withdrawn from the bottom end opening of the spiral guide groove to complete unlocking. The unlocked elastic member may then extend in an axial direction towards the aperture of the insertion hole for driving the bottom end of the pulling body towards the aperture of the insertion hole. Therefore, when the electric connector is inserted with the electric connector matched with the other party, the elastic piece can be pushed, compressed and unlocked by the other party connector seat inserted into the insertion hole, and in the subsequent extraction process, the elastic piece can pull the lead wire connected with the first pin needle arranged on the blind end of the insertion hole in a mode of driving the bottom end of the traction body to move towards the orifice of the insertion hole, so that the lead wire is displaced, the electric connection between the lead wire and the pin needle is forcedly broken from the structure, and when the electric connector is inserted again, the electric connection between the two electric connectors cannot be established, so that the electric connector has the capacity of breaking the communication connection after one-time insertion. When the electrical connector of the application is matched with the endoscope operation part, the endoscope operation part has the disposable function, and the disposable use of the endoscope operation part can be effectively ensured.
Further, in order to better realize the application, the following arrangement structure is adopted: the elastic piece comprises a pre-tightening spring and a movable body, the sliding block is arranged on the peripheral wall or the top end of the movable body, the bottom end of the pre-tightening spring is connected with the insertion tube, and the top end of the pre-tightening spring is connected with the movable body.
Further, in order to better realize the application, the following arrangement structure is adopted: at least part of the structure of the movable body is positioned outside the cannula when the pre-tightening spring is at the maximum axial length under non-tension.
By adopting the arrangement structure, after the electric connector is plugged once, the pretension spring can drive the movable body to extend out of the orifice of the insertion hole, so that the use state of the electric connector can be visually displayed outside, a user can judge the use state of the electric connector when holding the electric connector in a normal posture, the orifice of the insertion hole is aligned to the user to judge after the electric connector is not held, and the second plugging mode is not used for judging, so that the use state of the electric connector is very convenient and quick to judge.
Further, in order to better realize the application, the following arrangement structure is adopted: the pre-tightening spring is set to be a spiral compression spring.
Further, in order to better realize the application, the following arrangement structure is adopted: the top end of the movable body is provided with at least one pushing arm extending towards the orifice of the insertion hole along the axial direction, all pushing arms are arranged along Zhou Xiangyi sequence together with the sliding block, and the top end of each pushing arm is closer to the orifice of the insertion hole than the sliding block.
Further: all the pushing arms are distributed at equal intervals along the circumferential direction.
Further, in order to better realize the application, the following arrangement structure is adopted: the sliding block is a spiral block which extends spirally around the axis of the insertion pipe and is matched with the spiral guide groove, and the vertex angle of the sliding block is a round angle.
By adopting the arrangement structure, the fillet arranged at the top angle of the sliding block can provide a guiding function, the movable body can be forced to rotate along the circumferential direction to stagger the upper lip when axially contacting with the upper lip of the spiral guide groove, the sliding block can be captured by the opening of the spiral guide groove due to the processing error of the spiral guide groove or the circumferential rotation of the movable body when moving upwards along with the movable body, and then enters the spiral guide groove or is blocked by the opening of the spiral guide groove, so that the axial movement of the movable body after unlocking can be more effectively ensured.
Further, in order to better realize the application, the following arrangement structure is adopted: the spiral guide groove protrudes out of the wall of the insertion hole in the radial direction, the lower lip of the opening of the spiral guide groove protrudes out of the upper lip of the opening of the spiral guide groove in the circumferential direction, and the upper lip extends in the axial direction.
By adopting the arrangement structure, the lower lip of the spiral guide groove axially protrudes out of the upper lip of the spiral guide groove, an axial space is reserved at the opening of the spiral guide groove, so that the sliding block is not easy to be captured by the opening of the spiral guide groove due to the machining error of the spiral guide groove or the reason that the movable body rotates circumferentially along with the movable body when the sliding block moves upwards, then enters the spiral guide groove or is blocked by the opening of the spiral guide groove, and the axial movement of the movable body after unlocking can be more effectively ensured.
Further, in order to better realize the application, the following arrangement structure is adopted: the movable body is arranged to be coaxially inserted into the pipe fitting of the insertion hole, and an avoidance channel extending along the axial direction is arranged at one side of the top end of the movable body, which is positioned on the circumferential direction of the sliding block, wherein the sliding block exits from the opening of the spiral guide groove and moves towards the orifice of the insertion hole along the axial direction, and the spiral guide groove can axially enter the avoidance channel.
When the arrangement structure is adopted, the movable body of the pipe fitting and the insertion hole are coaxially inserted and matched, so that the axial direction of the movable body is smooth, and blocking is not easy to occur, so that the reliability is influenced.
Further, in order to better realize the application, the following arrangement structure is adopted: the blind end of the insertion hole is provided with a through hole extending towards the bottom end of the insertion tube along the axial direction, and the traction body movably penetrates through the through hole.
By adopting the arrangement structure, the direction of the through hole is consistent with the axial moving direction of the elastic piece, so that the traction body can be well ensured to smoothly shuttle in the through hole, and the situation that the length of the traction body outside the cannula cannot be reduced or cannot be reduced to a specified length capable of ensuring the connection of the broken pin needle and the lead in a short time due to the movement blocking of the traction body can be effectively avoided, so that the disposable use of the endoscope operation part can be effectively ensured.
Further, in order to better realize the application, the following arrangement structure is adopted: the blind end of the insertion hole is provided with a ring groove extending towards the bottom end of the insertion tube, the pre-tightening spring is arranged in the ring groove, and the movable body can axially move in or out of the ring groove.
By adopting the arrangement structure, the ring groove is arranged to enable the pre-tightening spring to occupy less space or not occupy the space of the insertion hole, so that the electric connector can be designed to be shorter under the condition of having related functions, and the use amount of the traction body can be reduced at least, thereby reducing the production cost.
The application also provides an endoscope, which comprises an endoscope main body and a first electric connector, wherein the first electric connector is arranged as the electric connector, the first electric connector is arranged at the external connection end of the connecting cable of the endoscope main body, the traction body is connected with the cable wire of the connecting cable, or the first electric connector is arranged at the cable connection end of the operating part of the endoscope main body, and the traction body is connected with the connector connecting wire which is arranged at the operating part and used for being connected with the first electric connector.
The application has the following advantages and beneficial effects:
in the application, the bottom end of the traction body is used for connecting a lead wire connected with the pin needle. The elastic piece is matched with the spiral guide groove through the sliding block and limited by the top end of the spiral guide groove, so that the elastic piece can be kept in an axially compressed state to wait for unlocking, and the bottom end opening of the spiral guide groove enables the elastic piece to be further compressed along the axial direction so that the sliding block can be withdrawn from the bottom end opening of the spiral guide groove to complete unlocking. The unlocked elastic member may then extend in an axial direction towards the aperture of the insertion hole for driving the bottom end of the pulling body towards the aperture of the insertion hole. Therefore, when the electric connector is inserted with the electric connector matched with the other party, the elastic piece can be pushed, compressed and unlocked by the other party connector seat inserted into the insertion hole, and in the subsequent extraction process, the elastic piece can pull the lead wire connected with the first pin needle arranged on the blind end of the insertion pipe in a mode of driving the bottom end of the traction body to move towards the orifice of the insertion hole, so that the lead wire is displaced, the electric connection between the lead wire and the pin needle is forcedly broken structurally, and when the electric connector is inserted again, the electric connection between the two electric connectors cannot be established, so that the electric connector has the capacity of breaking the communication connection after one-time insertion. When the electrical connector of the application is matched with the endoscope operation part, the endoscope operation part has the disposable function, and the disposable use of the endoscope operation part can be effectively ensured.
Drawings
In order to more clearly illustrate the embodiments of the application 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 application, 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 connector according to the present application;
FIG. 2 is a schematic diagram of an end face structure of an electrical connector of the present application in a direction of a hole opening of an insertion hole;
fig. 3 shows the connection structure of the electrical connector and the connecting cable of the present application (the connecting cable and the traction body are shown in bold solid lines);
FIG. 4 is a schematic structural view of an outer tube;
FIG. 5 shows the form of engagement of the resilient member with the cannula and the form of engagement of the moveable body with the helical channel when locked;
FIG. 6 shows a structure of the electrical connector of the present application when the movable body is in the first position and the cannula is locked;
FIG. 7 shows the structure of the movable body in the electrical connector of the present application in a third position;
fig. 8 is a schematic view of the structure of an endoscope body according to the present application.
Marked in the figure as:
1. a cannula; 1a, an outer tube; 1b, a connector seat; 1b1, a semicircular groove; 11. an insertion hole; 111. a spiral guide groove; 111a, lower lip; 111b, upper lip; 12. a through hole; 13. a ring groove;
2. an elastic member; 2a, pre-tightening a spring; 2b, a movable body; 21. a slide block; 22. a push arm; 23. an avoidance channel;
3. a traction body;
4. an outer insulating sleeve;
5. an operation unit;
6. a connection cable; 61. a cable wire;
7. a first pin needle.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, based on the examples herein, which are within the scope of the application as defined by the claims, will be within the scope of the application as defined by the claims.
In the description of the present application, 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," "top," "bottom," and the like are used as directions or positional relationships based on those shown in the drawings, merely to facilitate description of the application 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 thus should not be construed as limiting the application. 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 application, 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 application can be understood as appropriate by those of ordinary skill in the art.
In the application, the electric connector and the other electric connector belonging to the same electric connector are used for mutual insertion to realize electric connection, the electric connector can be a male connector or a female connector, and the pin needle arranged on the electric connector can be a male pin needle or a female pin needle, wherein the pin needle penetrating through the blind end of the insertion hole 11 of the insertion tube 1 and the pin needle penetrating through the bolt of the other electric connector are distinguished by the first pin needle 7 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 method 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 connector, which is used as a main component of an electrical connector and is plugged and electrically connected with another electrical connector of the electrical connector, so as to realize communication connection between an operation part of an endoscope and a display device. The electric connector can destroy the communication connection function through one-time plugging action so as to achieve the purpose of disposable use, thereby effectively ensuring that the endoscope operation part of the electric connector adopting the electric connector can be destroyed after disposable use and can not be reused, and the electric connector is particularly provided with the following structure as shown in figures 1 to 7:
in this embodiment, the electrical connector comprises a cannula 1, an elastic member 2 and a traction body 3.
The insertion tube 1 belongs to a component of one electrical connector of the electrical connectors, and is used for being matched with the other electrical connector of the electrical connectors to complete electrical connection. The cannula 1 may be retrofitted or redesigned on the basis of existing designs, but at least to ensure that the cannula 1 and the other hub inserted therein are able to perform the connection or disconnection according to existing axial insertion schemes.
As shown in fig. 1 to 7, the cannula 1 is formed with an axial insertion hole 11, and the insertion hole 11 has an orifice at the top and a blind end at the bottom. The blind end of the insertion hole 11 is used for penetrating the first pin needle 7. The wall of the insertion hole 11 is provided with a spiral guide groove 111 extending spirally around its axis, and the spiral guide groove 111 extends with a small section whose top end is closed and whose bottom end is open. The spiral guide grooves 111 may be provided in more than one number, and when provided in a plurality of stages, all the spiral guide grooves 111 are arranged in sequence, preferably equidistantly in sequence, along Zhou Xiangyi. The spiral guide groove 111 may be a concave groove on the wall of the insertion hole 11, or a groove with the wall of the insertion hole 11 as the bottom of the groove, when the wall of the insertion hole 11 is the bottom of the groove, a radial protrusion is formed on the wall of the insertion hole 11, and the spiral guide groove 111 is a concave groove on the radial protrusion, so that the spiral guide groove 111 protrudes out of the wall of the insertion hole 11 in the radial direction.
As shown in fig. 3, 5 and 6, in the electrical connector of the present application, which is not inserted, the elastic member 2 is axially compressively disposed in the cannula 1, and the elastic member 2 can be maintained in an axially compressed state. Specifically, the elastic member 2 is provided with sliding blocks 21 corresponding to all the spiral guide grooves 111 one by one, the sliding blocks 21 extend into the corresponding spiral guide grooves 111 and are in guiding fit with the corresponding spiral guide grooves 111, and the sliding blocks 21 are located at the top ends of the spiral guide grooves 111 and are in abutting limiting at the top ends under the action of the elastic member 2. The elastic member 2 is provided as a member that can be pushed in the axial direction by the other electrical connector inserted into the insertion hole 11. The elastic member 2 is further axially compressed in the axial direction toward the blind end of the insertion hole 11 by an external force such as a pushing force when the other electrical connector is inserted into the insertion hole 11 in the axial direction to push the top end of the elastic member 2, in the process, the slider 21 is axially rotated by the guiding action of the spiral guide groove 111 and is withdrawn from the opening of the spiral guide groove 111, at this time, the spiral guide groove 111 releases the restriction of the slider 21, and when the external force is withdrawn, such as immediately pulling the other electrical connector out of the insertion hole 11, the slider 21 is axially moved toward the opening of the insertion hole 11, and simultaneously, the traction body 3 is driven by the elastic member 2, and the bottom end thereof is moved to a position closer to the opening of the insertion hole 11.
As shown in fig. 3, the traction body 3 is operative to follow the degree of compression of the elastic member 2, move in the axial direction, and pull the wire by the positional change of the bottom end in the axial direction. The top end of the traction body 3 is positioned in the insertion hole 11 and is connected to the position of the elastic piece 2, which can change position along the axial direction, and the bottom end of the traction body 3 is positioned outside the cannula 1.
The bottom end of the traction body 3 is used for connecting a wire connected with a pin needle. The elastic member 2 is matched with the spiral guide groove 111 through the sliding block 21 and limited by the top end of the spiral guide groove 111, so that the elastic member 2 can be kept in an axially compressed state to wait for unlocking, and the bottom end opening of the spiral guide groove 111 enables the elastic member 2 to be further compressed along the axial direction so that the sliding block 21 can be withdrawn from the bottom end opening of the spiral guide groove 111 to complete unlocking. The unlocked elastic member 2 may then extend in axial direction towards the orifice of the insertion hole 11 for driving the bottom end of the pulling body 3 towards the orifice of the insertion hole 11. Therefore, when the electrical connector of the application is inserted with the electrical connector matched with the other party, the elastic piece 2 can be pushed, compressed and unlocked by the other party connector seat inserted into the insertion hole 11, and in the subsequent extraction process, the elastic piece 2 can pull the lead wire connected with the first pin needle arranged on the blind end of the insertion tube 1 in a mode of driving the bottom end of the traction body 3 to move towards the orifice of the insertion hole 11, so that the displacement of the lead wire is caused, thereby the electrical connection between the lead wire and the pin needle is forcedly broken from the structure, and when the electrical connector is inserted again, the electrical connection between the two electrical connectors cannot be established, so that the electrical connector of the application has the capability of breaking the communication connection after one-time insertion. When the electrical connector of the application is matched with the endoscope operation part, the endoscope operation part has the disposable function, and the disposable use of the endoscope operation part can be effectively ensured.
According to some alternative embodiments, the cannula 1 may be an integral structure or an assembly, and when the cannula 1 is an assembly, the cannula 1 comprises an outer tube 1a and a hub 1b, as shown in fig. 1-7. The joint seat 1b is used for penetrating the first pin needle 7, is inserted into the pipe hole of the outer pipe 1a and is fixed in interference fit with the first pin needle, the joint seat 1b plugs the bottom end of the pipe hole of the insertion pipe 1, and the pipe hole of the outer pipe 1a forms an insertion hole 11 taking the joint seat 1b as a blind end. A spiral guide groove 111 is formed on the inner peripheral wall of the outer tube 1a.
According to some alternative embodiments, the connector 1b is provided with a first pin 7.
According to some alternative embodiments, the elastic member 2 may be a monolithic structure, such as a product of elastic rubber, coil springs, plate springs, etc. that can be deformed in the axial direction and provide a corresponding axial thrust. The elastic member 2 may also be an assembly, such as shown in fig. 2 and fig. 5-7, where the elastic member 2 includes a pre-tightening spring 2a and a movable body 2b, the bottom end of the pre-tightening spring 2a is connected to the insertion tube 1, specifically abuts against the abutment seat 1b, the top end of the pre-tightening spring 2a abuts against the bottom end of the movable body 2b, and the movable body 2b is configured as a component that can be pushed in the axial direction by another electrical connector inserted into the insertion hole 11, such as by a top end surface thereof abutting against the other electrical connector. The slider 21 is provided on the outer peripheral wall or the tip of the movable body 2b. The pretensioning spring 2a may be a product of an elastic rubber member, a coil spring, a plate spring, or the like, which is deformable in the axial direction and provides a corresponding axial thrust force.
According to some alternative embodiments, the pretensioning spring 2a has a longer free length, and at least part of the structure of the movable body 2b is located outside the cannula 1 when the pretensioning spring 2a is at its maximum axial length under no tension. Preferably, the pretensioning spring 2a is selected as a helical compression spring. In one case, when the cannula 1 is in the standing posture, the tip of the pretensioning spring 2a is pressed by the movable body 2b alone, and the pretensioning spring 2a makes a part of the structure of the movable body 2b be located outside the cannula 1. After the electric connector is plugged once, the pre-tightening spring 2a can drive the movable body 2b to extend out of the orifice of the insertion hole 11, so that the use state of the electric connector can be visually displayed outside, a user can judge the use state of the electric connector when holding the electric connector in a normal posture, the orifice of the insertion hole 11 is aligned to the user to judge after the electric connector is not held, and the second plugging mode is not required to judge, so that the use state of the electric connector is very convenient and quick to judge.
According to some alternative embodiments, as shown in fig. 5 and 6, the slider 21 protrudes from the top end of the movable body 2b, the slider 21 is made thicker, and when the slider 21 is engaged with the spiral guide groove 111, the slider 21 protrudes from the spiral guide groove 111 in the radial direction by a distance so that the other electrical connector can contact with the slider 21 to push against the movable body 2b after being inserted into the insertion hole 11. In order to avoid damaging the slider 21, it is preferable that, as shown in fig. 5 to 7, the top end of the movable body 2b has at least one pushing arm 22 extending toward the orifice of the insertion hole 11 in the axial direction, all the pushing arms 22 are arranged along Zhou Xiangyi together with the slider 21 so as to be optimally arranged in equal intervals in order, and the top ends of the pushing arms 22 are arranged flush with the slider 21 for contact force together. In order to better avoid damaging the sliding block 21, the pushing arms 22 can be further extended, so that the top ends of the pushing arms 22 are closer to the hole openings of the insertion holes 11 than the sliding block 21, and the contact stress of the sliding block 21 and the other electrical connector is completely replaced, at this time, all the pushing arms 22 are preferably distributed at equal intervals along the Zhou Xiangyi sequence, so that the stress of the moving body 2b is balanced when being pushed. All the pushing arms 22 are equally spaced along the Zhou Xiangyi sequence, and the slider 21 is disposed on the outer peripheral wall of the movable body 2b.
According to some alternative embodiments, as shown in fig. 5-7, the slider 21 is provided as a helical block which extends helically around the axis of the cannula 1, fitting the helical channel 111, and the top angle of the slider 21 is provided as a rounded corner. The rounded corners arranged at the top corners of the sliding blocks 21 can provide a guiding function, and the sliding blocks 21 can force the movable bodies 2b to rotate along the circumferential direction to stagger the upper lip portions 111b when axially contacting with the upper lip portions 111b of the spiral guide grooves 111, so that the sliding blocks 21 are not easy to be captured by the openings of the spiral guide grooves 111 due to the machining errors of the spiral guide grooves 111 or the circumferential rotation of the movable bodies 2b when upwards moving along with the movable bodies 2b, further enter the spiral guide grooves 111 or are blocked by the openings of the spiral guide grooves 111, and the axial movement of the unlocked movable bodies 2b can be more effectively ensured.
Of course, the slider 21 may be provided as a circular block or the like.
According to some alternative embodiments, the movable body 2b may be configured as a plate-shaped structural member, that is, when the insertion hole 11 is a circular hole, the movable body 2b may be specifically configured as an arc-shaped plate, and the outer arc surfaces thereof are disposed opposite to and are closely attached to the hole wall of the insertion hole 11, and the axes thereof are coincident with the axis of the insertion hole 11. The movable body 2b may be a tube as shown in fig. 2 and fig. 5 to 7, in which the insertion hole 11 is a circular hole, the tube is a circular tube, the movable body 2b is coaxially inserted into the insertion hole 11, a side of the top end of the movable body 2b in the circumferential direction of the slider 21 is provided with an escape channel 23 extending in the axial direction, and the escape channel 23 may be a groove formed on the outer circumferential wall of the movable body 2b or a notch. In the process that the slider 21 exits the opening of the spiral guide groove 111 and moves toward the orifice of the insertion hole 11 in the axial direction, the spiral guide groove 111 can enter the escape passage 23 in the axial direction, leaving a sufficient axial movement space for the movable body 2b. The movable body 2b of the pipe fitting and the insertion hole 11 are coaxially inserted and matched, so that the axial direction of the movable body 2b can be smooth, and blocking is not easy to occur, so that the reliability is influenced. If the spiral guide groove 111 is directly formed at the wall of the insertion hole 11, when the movable body 2b is a pipe member, the outer diameter of the movable body 2b is smaller than the aperture of the insertion hole 11 to give the movable body 2b a space to be offset in the radial direction.
According to some alternative embodiments, as shown in fig. 4 to 7, when the spiral guide groove 111 is formed in a radial protrusion formed at the wall of the insertion hole 11, upper and lower side surfaces of the radial protrusion on the opening side of the spiral guide groove 111 serve as an upper lip 111b and a lower lip 111a of the spiral guide groove 111, respectively. The lower lip 111a of the spiral guide groove 111 protrudes in the circumferential direction beyond the upper lip 111b thereof, and the upper lip 111b extends in the axial direction. The lower lip 111a of the spiral guide groove 111 protrudes out of the upper lip 111b along the axial direction, and an axial space is reserved at the opening of the spiral guide groove 111, so that the sliding block 21 is not easy to be captured by the opening of the spiral guide groove 111 due to the machining error of the spiral guide groove 111 or the reason that the movable body 2b rotates circumferentially when moving upwards along with the movable body 2b, then enters the spiral guide groove 111 or is blocked by the opening of the spiral guide groove 111, and the axial movement of the unlocked movable body 2b can be more effectively ensured.
According to some alternative embodiments, the traction body 3 may be a rope or a chain or a rod or a plate. When the pulling body 3 is a rigid member such as a rod or plate, the rod may be threaded axially towards the insertion hole aperture against the insertion hole 11 wall and then extend axially towards the bottom end of the cannula 1 to below the cannula 1 with a 180 degree return. The position of the rod in the insertion hole 11 should not affect the insertion of the other joint seat, so that the aperture of the insertion hole 11 is larger than the outer diameter of the other joint seat, the rod is arranged in an annular space formed when the other joint seat is matched with the insertion hole 11, and an axial avoidance groove can be machined on the other joint seat to accommodate the rod. The traction body 3 is preferably provided with a rope, because when the traction body 3 is provided with the rope, the traction body 3 can be well ensured to only produce unidirectional pulling effect on the connected wire, and the situation that the welding point of the wire and the pin needle is damaged or the wire is torn before use caused by corresponding displacement of the traction body 3 pulling the connected wire in the process that the elastic piece 2 is propped by the other joint seat can be avoided. When the traction body 3 is a rope or a chain, a through hole 12 needs to be additionally formed in the insertion tube 1, so that the traction body 3 can be penetrated out from the hole wall or the blind end of the insertion hole 11 to the lower part of the insertion tube 1.
According to some alternative embodiments, as shown in fig. 2, 3 and 5, the blind end of the insertion hole 11 is provided with a through hole 12 extending axially towards the bottom end of the cannula 1, and the pulling body 3 is movably arranged through the through hole 12. Preferably, the through hole 12 is formed by a semicircular groove 1b1 provided in the joint seat 1b and an inner peripheral wall of the outer tube 1a. The direction of the through hole 12 is consistent with the axial moving direction of the elastic piece 2, so that smooth shuttling of the traction body 3 in the through hole 12 can be well ensured, and the situation that the length of the traction body 3 outside the insertion tube 1 cannot be reduced or cannot be reduced to a specified length capable of ensuring connection of a broken pin needle and a lead in a short time due to moving blocking of the traction body 3 can be effectively avoided, so that the disposable use of an endoscope operation part can be more effectively ensured.
Of course, the through hole 12 may be formed in the side wall of the outer tube 1a, but is preferably formed in the joint base 1b so as to penetrate the joint base 1b in the axial direction.
According to some alternative embodiments, as shown in fig. 3, 6 and 7, the blind end of the insertion hole 11, i.e. the top end of the hub 1b is provided with a ring groove 13 extending toward the bottom end of the cannula 1, the pre-tightening spring 2a is provided in the ring groove 13, and the movable body 2b can be moved in or out of the ring groove 13 in the axial direction. The ring groove 13 allows the pre-tightening spring 2a to occupy little or no space of the insertion hole, so that the electrical connector of the present application can be designed to be shorter under the condition of having the relevant function, and further, the usage amount of the traction body 3 can be at least reduced, so as to reduce the production cost.
In another aspect, the present application also provides an endoscope including an endoscope body, a first electrical connector and a display device, the first electrical connector being provided as the electrical connector of the present application.
Some of the connection cables 6 of the endoscope body are detachable and some are not detachable, so that the first electrical connector can be specifically selected to be disposed at different positions on the endoscope body according to the removability of the connection cables 6. As shown in fig. 8, when the connection cable 6 is detachable, the first electrical connector is disposed at the cable connection end of the operation portion 5 of the endoscope body, that is, the first electrical connector is disposed at the point a, and when the connection cable 6 is not detachable, the first electrical connector is disposed at the external connection end of the connection cable 6 of the endoscope body, that is, the first electrical connector is disposed at the point b.
As shown in fig. 3, when the first electrical connector is disposed at the external connection end of the connection cable 6 of the endoscope main body, the cable wire 61 of the connection cable 6 is welded to the end portion of the first pin needle 7 located outside the insertion tube 1, and the end of the traction body 3 located outside the insertion tube 1 is connected to at least one cable wire 61 of the connection cable 6 by welding or bolting. When the first electrical connector is disposed at the cable connection end of the operation portion 5 of the endoscope main body, the traction body 3 is connected with the connector connection wire which is disposed at the operation portion 5 and is used for being connected with the first electrical connector, and the connection mode between the components is the same as the former.
According to some alternative embodiments, as shown in fig. 1-3 and 6, a section of the outer tube 1a near the bottom end is sleeved with an outer insulation sleeve 4, and the outer insulation sleeve 4 wraps the traction body 3 and the first pin needle 7 inside to provide insulation protection for the traction body 3 and the first pin needle 7, so that the traction body 3 and the first pin needle 7 are not easily damaged in advance, meanwhile, the outer insulation sleeve 4 can also provide a plugging stress point, and in addition, the outer insulation sleeve 4 can also improve the repair difficulty of a connecting welding point of the first pin needle 7 which is damaged in the outer insulation sleeve and the cable wire 61 or the repair difficulty of a break point of the cable wire 61 so as to more effectively guarantee the disposable use of the endoscope main body.
The following description will be made by taking, as an example, an external connection end of the connection cable 6 in which the first electrical connector is provided in the endoscope main body:
before the endoscope is used, as shown in fig. 3 and 5, the movable body 2b is located at the first position, the sliding block 21 extends into the spiral guide groove 111, the sliding block 21 abuts against the top end of the spiral guide groove 111 under the action of the pre-tightening spring 2a, and the movable body 2b is locked.
When the endoscope is used, the first electrical connector on the connecting cable 6 of the endoscope main body is inserted in alignment with the other electrical connector arranged on the display device, the connector seat of the other electrical connector is inserted into the insertion hole 11 with the second pin needle arranged, the other connector seat contacts the pushing arm 22 and pushes the movable body 2b along the axial direction, the pre-tightening spring 2a is further compressed, the sliding block 21 moves downwards and rotates to the opening of the spiral guide groove 111 to withdraw, and then the second pin needle of the other connector seat is connected to the first pin needle 7 penetrating through the connector seat 1b of the first electrical connector, and the movable body 2b is positioned at the second position.
After the use is completed, the connecting cable 6 is pulled out, the other joint seat is gradually pulled out from the insertion hole 11, the movable body 2b moves towards the orifice of the insertion hole 11 along the axial direction under the axial thrust of the pre-tightening spring 2a, the sliding block 21 passes through the side of the opening of the spiral guide groove 111, and meanwhile, the whole spiral guide groove 111 gradually enters the avoidance channel 23. Finally, the movable body 2b reaches the third position shown in fig. 7, at this time, the movable body 2b has driven the traction body 3 to displace the cable wire 61, resulting in the breaking of the welding point between the cable wire 61 and the first pin needle 7 or the direct breaking of the cable wire 61. So that the endoscope body employing the joint of the present application cannot be reused. When the movable body 2b reaches the third position, the portion of the pushing arm 22 of the movable body 2b protrudes from the orifice of the insertion hole 11.
The foregoing is merely illustrative embodiments of the present application, but the scope of the present application 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 application, and the application should be covered.
Claims (10)
1. An electrical connector, characterized in that: comprising the following steps:
the insertion tube (1) is provided with an axial insertion hole (11) with a blind end at the bottom end, the wall of the insertion hole (11) is provided with a spiral guide groove (111) which extends spirally around the axis of the insertion hole, the top end of the spiral guide groove (111) is closed, the bottom end of the spiral guide groove is open, and the blind end of the insertion hole (11) is used for connecting a pin needle;
an elastic member (2) axially and compressively arranged in the insertion tube (1), wherein the elastic member (2) is provided with a sliding block (21), and the sliding block (21) stretches into the spiral guide groove (111), is in guide fit with the spiral guide groove and is abutted against the top end of the spiral guide groove (111);
the top end of the traction body (3) is connected with the elastic piece (2), the bottom end of the traction body is positioned outside the insertion tube (1) and is used for connecting a lead connected with a pin needle connected with the blind end of the insertion hole (11);
the elastic piece (2) can be axially compressed towards the blind end of the insertion hole (11) further by the action of external force, in the process, the sliding block (21) can be guided by the spiral guide groove (111) to rotate around the axial direction and withdraw from the opening of the spiral guide groove (111), after the external force is immediately withdrawn, the sliding block (21) can be axially moved towards the opening of the insertion hole (11), and the bottom end of the traction body (3) can be moved to a position closer to the opening of the insertion hole (11) so as to draw a wire to break the connection of the wire and the pin needle.
2. An electrical connector as defined in claim 1, wherein: the elastic piece (2) comprises a pre-tightening spring (2 a) and a movable body (2 b), the sliding block (21) is arranged on the peripheral wall or the top end of the movable body (2 b), the bottom end of the pre-tightening spring (2 a) is connected with the insertion tube (1), and the top end of the pre-tightening spring is connected with the movable body (2 b).
3. An electrical connector as defined in claim 2, wherein: at least part of the structure of the movable body (2 b) is positioned outside the insertion tube (1) when the pretension spring (2 a) is in the maximum axial length under non-tension.
4. An electrical connector as in claim 3 wherein: the pre-tightening spring (2 a) is arranged as a spiral compression spring.
5. An electrical connector as defined in claim 2, wherein: the top end of the movable body (2 b) is provided with at least one pushing arm (22) extending towards the orifice of the insertion hole (11) along the axial direction, all pushing arms (22) are arranged along with the sliding block (21) along the Zhou Xiangyi sequence, and the top end of the pushing arm (22) is closer to the orifice of the insertion hole (11) than the sliding block (21).
6. An electrical connector as defined in claim 1, wherein: the sliding block (21) is arranged as a spiral block which extends spirally around the axis of the insertion pipe (1) and is matched with the spiral guide groove (111), and the vertex angle of the sliding block (21) is arranged as a round angle.
7. An electrical connector as defined in claim 2, wherein: the spiral guide groove (111) protrudes out of the wall of the insertion hole (11) along the radial direction, the lower lip (111 a) of the opening of the spiral guide groove (111) protrudes out of the upper lip (111 b) along the circumferential direction, and the upper lip (111 b) extends along the axial direction.
8. An electrical connector as defined in claim 7, wherein: the movable body (2 b) is arranged to be coaxially inserted into the pipe fitting of the insertion hole (11), one side, in the circumferential direction, of the top end of the movable body (2 b) located on the sliding block (21) is provided with an avoidance channel (23) extending along the axial direction, wherein the sliding block (21) exits from the opening of the spiral guide groove (111) and moves towards the orifice of the insertion hole (11) along the axial direction, and the spiral guide groove (111) can axially enter the avoidance channel (23).
9. An electrical connector as defined in claim 8, wherein: the blind end of the insertion hole (11) is provided with a through hole (12) extending towards the bottom end of the insertion tube (1), and the traction body (3) movably penetrates through the through hole (12); the blind end of the insertion hole (11) is provided with a ring groove (13) extending towards the bottom end of the insertion tube (1), the pre-tightening spring (2 a) is arranged in the ring groove (13), and the movable body (2 b) can axially move in or out of the ring groove (13).
10. An endoscope, characterized in that: comprising an endoscope body and a first electrical connector configured as the electrical connector of any one of claims 1-9; the first electrical connector is arranged at the external connection end of the connecting cable (6) of the endoscope main body, the traction body (3) is connected with the cable wire (61) of the connecting cable (6), or the first electrical connector is arranged at the cable connection end of the operating part (5) of the endoscope main body, and the traction body (3) is connected with the connector connecting wire which is arranged at the operating part (5) and used for being connected with the first electrical connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310864193.4A CN116613561B (en) | 2023-07-14 | 2023-07-14 | Electrical connector and endoscope |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310864193.4A CN116613561B (en) | 2023-07-14 | 2023-07-14 | Electrical connector and endoscope |
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| Publication Number | Publication Date |
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| CN116613561A CN116613561A (en) | 2023-08-18 |
| CN116613561B true CN116613561B (en) | 2023-09-15 |
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| CN202310864193.4A Active CN116613561B (en) | 2023-07-14 | 2023-07-14 | Electrical connector and endoscope |
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Citations (6)
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| CA2482572A1 (en) * | 2003-09-29 | 2005-03-29 | Ethicon Endo-Surgery, Inc. | Endoscopic mucosal resection device with overtube and method of use |
| CN103417178A (en) * | 2013-08-20 | 2013-12-04 | 姜泊 | Disposable medical endoscope |
| CN207627290U (en) * | 2017-03-28 | 2018-07-20 | 深圳英美达医疗技术有限公司 | Disposable endoscope |
| CN109171974A (en) * | 2018-10-09 | 2019-01-11 | 成都博恩思医学机器人有限公司 | The driving mechanism of surgical instrument linear movement |
| WO2020168147A1 (en) * | 2019-02-15 | 2020-08-20 | Itt Manufacturing Enterprises Llc | Coaxial connector |
| DE102020110399A1 (en) * | 2020-04-16 | 2021-10-21 | Rs-Technik Cad-Cam Gmbh | Cock for the passage of fluids |
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2023
- 2023-07-14 CN CN202310864193.4A patent/CN116613561B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2482572A1 (en) * | 2003-09-29 | 2005-03-29 | Ethicon Endo-Surgery, Inc. | Endoscopic mucosal resection device with overtube and method of use |
| CN103417178A (en) * | 2013-08-20 | 2013-12-04 | 姜泊 | Disposable medical endoscope |
| CN207627290U (en) * | 2017-03-28 | 2018-07-20 | 深圳英美达医疗技术有限公司 | Disposable endoscope |
| CN109171974A (en) * | 2018-10-09 | 2019-01-11 | 成都博恩思医学机器人有限公司 | The driving mechanism of surgical instrument linear movement |
| WO2020168147A1 (en) * | 2019-02-15 | 2020-08-20 | Itt Manufacturing Enterprises Llc | Coaxial connector |
| DE102020110399A1 (en) * | 2020-04-16 | 2021-10-21 | Rs-Technik Cad-Cam Gmbh | Cock for the passage of fluids |
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| Publication number | Publication date |
|---|---|
| CN116613561A (en) | 2023-08-18 |
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