WO2021093716A1 - 一种腔镜用外挂式冲吸管及腔镜 - Google Patents

一种腔镜用外挂式冲吸管及腔镜 Download PDF

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Publication number
WO2021093716A1
WO2021093716A1 PCT/CN2020/127684 CN2020127684W WO2021093716A1 WO 2021093716 A1 WO2021093716 A1 WO 2021093716A1 CN 2020127684 W CN2020127684 W CN 2020127684W WO 2021093716 A1 WO2021093716 A1 WO 2021093716A1
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Prior art keywords
endoscope
flushing
tube
sleeve
flushing pipe
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PCT/CN2020/127684
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English (en)
French (fr)
Inventor
费明
陈锦国
Original Assignee
上海施美德医疗用品有限公司
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Priority claimed from CN201921978675.8U external-priority patent/CN211561253U/zh
Priority claimed from CN201911121953.2A external-priority patent/CN111265724A/zh
Application filed by 上海施美德医疗用品有限公司 filed Critical 上海施美德医疗用品有限公司
Publication of WO2021093716A1 publication Critical patent/WO2021093716A1/zh

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems

Definitions

  • the invention relates to medical equipment, in particular to endoscopic instrument technology.
  • the endoscope can enter the human body through the natural orifice of the human body or through a small incision made by the operation. According to this, the minimally invasive operation of the endoscope is used. Because the patient has less trauma, the surgical risk is low, the postoperative recovery is fast, and the appearance of the wound is affected. Many features such as small, have been widely valued and developed in various surgical fields in recent years. For example, ear endoscopic surgery has made important progress in many indications such as cholesteatoma and otitis media, and has been widely used.
  • ear endoscopic surgery As we all know, one of the major constraints of ear endoscopic surgery is that the ear canal is generally only 4 to 5 cm in diameter, and the operation space is very limited. The doctor's two-handed operation is very crowded. If it is necessary to use an instrument combined with an endoscope for cutting, peeling, and grinding For different operations such as cutting and sucking blood, washing wounds, and sucking out liquid tissue, doctors must change various operating instruments back and forth, and perform operations with one hand to complete the operation, which is very inconvenient. Or two physicians are required to cooperate with the operation, which not only increases the cost, but also has the problem of inconvenience in operation.
  • the Chinese patent application with publication number CN109349989A discloses a multifunctional ear endoscope.
  • the solution mainly changes the structure design of the endoscope.
  • the endoscope has the function of adjusting the brightness, which is convenient for adjusting the brightness with one hand.
  • the design of the defogging tube is also added to solve the problem of fogging on the mirror surface caused by the temperature difference between the endoscope and the human body.
  • the dimmer switch, the defogging tube, and the endoscope are an integral structure, which increases the complexity of the product and also increases the production cost.
  • the change in the structure and shape of the endoscope also limits the use of the endoscope.
  • the defogging tube has a small diameter, a complicated interface, and difficult postoperative cleaning and disinfection, which increases the risk of use.
  • a negative pressure suction needle is designed to suck blood and other contaminants during surgery. Although the suction needle is hung on the endoscope, the suction needle cannot be operated by the hand holding the endoscope.
  • Another common structure is to integrate the flushing channel into the design of the endoscope insertion part. Because the flushing tube is added and the outer shape of the tube is maintained, the diameter of the front end of the endoscope will be thicker, which will limit the endoscope's When used in the ear canal, for example, due to the limitation of the ear canal space, other instruments cannot be used together, which will make the ear endoscopic surgery impossible.
  • the purpose of the present invention is to provide an external flushing pipette for a cavity mirror, which has a simple overall structure and can greatly improve the functionality and convenience of operation of the cavity mirror without affecting the basic structure and performance of the cavity mirror.
  • the present invention further designs the plug-in flushing tube in a telescopic form, which can realize single-person operation of the endoscope and other auxiliary operation functions based on the flushing tube, which helps to improve the efficiency of the operation.
  • the present invention provides an external flushing tube for endoscope.
  • the flushing tube assembly in the external flushing tube is connected to the base of the front end of the endoscope through a detachable structure, and can be inserted along the front end of the endoscope.
  • the length direction is distributed outside the insertion part of the front end of the endoscope.
  • plug-in flushing pipe includes:
  • a connecting base which is detachably connected to the base at the front end of the endoscope
  • a sleeve is arranged on the connection base, and when the connection base is detachably connected to the front end base of the endoscope, the sleeve is integrally sleeved on the insertion part of the front end of the endoscope;
  • a flushing pipe assembly the flushing pipe assembly is placed on the outer wall of the sleeve and distributed along the length direction of the sleeve; the flushing pipe assembly is connected to a flushing source and/or an adsorption power source.
  • the external flushing pipe further includes a control valve assembly, which is connected with the flushing pipe assembly and is connected with a flushing source and/or an adsorption power source.
  • flushing pipe assembly is fixedly arranged on the outer wall of the sleeve.
  • flushing tube assembly and the sleeve can move along the outer wall of the endoscope insertion portion.
  • the flushing tube assembly includes at least one tube body.
  • the pipe body in the flushing pipe assembly is connected with the control valve assembly through a connection joint.
  • connection joint is a luer joint or a pagoda joint.
  • outlet on the pipe body in the flushing pipe assembly is arranged on the pipe wall or the end of the pipe body.
  • the outlet is provided with a guiding inclined surface, and the guiding inclined surface forms an angle of 10°-30° with the axial direction of the pipe body.
  • the endoscope with an external hanging-type flushing tube provided by the present invention includes the endoscope body and the above-mentioned external hanging-type flushing tube, and the external hanging-type flushing tube is sleeved on the endoscope via a detachable connection base thereon. On the body.
  • the solution provided by the present invention abandons the inertial design thinking that the function improvement solution on the front end of the existing cavity mirror (especially the insertion part) needs to adopt a fixed structure to ensure the reliability of the product, and innovatively adopts the reverse design solution to form a disposable (that can be disassembled).
  • Type The solution of flushing the suction tube on the cavity mirror, so that the cavity mirror has the flushing function at the same time without changing or improving the cavity mirror and without affecting the original function or performance (such as inspection function) of the cavity mirror itself. , This greatly improves the convenience of cavity mirror operation.
  • this solution adopts a disposable (removable) structure and does not require any modification or design of the cavity mirror itself, so as not to increase the complexity of the structure of the cavity mirror; further, the entire flushing pipe adopts an external hanging type
  • the method is set on the insertion part of the front end of the endoscope, which has little effect on the thickness of the end insertion part of the endoscope, does not affect the use of the front end insertion part of the endoscope, and then does not affect the existing basic functions or performance of the endoscope; based on the disposable type
  • the (removable) structure does not affect the maintenance or disinfection operation of the endoscope itself, and has strong practicability.
  • this solution adopts a disposable (removable) plug-in flushing straw design solution, which is matched with the endoscope itself, so that the operator can cooperate with both hands to achieve the function of the endoscope itself and the flushing function, avoiding The problem of changing various operating instruments back and forth greatly improves the convenience of using the endoscope.
  • Fig. 1 is a schematic diagram of the structure of an ear endoscope involved in Example 1 of the present invention
  • Fig. 2 is a schematic structural diagram of an external flushing pipe with a fixed structure in Example 1 of the present invention
  • Example 3 is a schematic diagram of the structure of the outlet of the flushing pipe body of the external-hanging flushing pipe in Example 1 of the present invention
  • Example 4 is a schematic structural diagram of an external flushing pipe with a retractable structure in Example 2 of the present invention.
  • Endoscope (such as otoscope, etc.) as a precision medical instrument, based on its special use environment, puts forward strict requirements on the size and structure of the front end of the endoscope, that is, the size of the front end of the endoscope is required to be small enough. Reliable enough.
  • this solution abandons the direct improvement of the inherent structure of the cavity mirror, and adopts a fixed structure to ensure the cavity mirror Reliable inertial design thinking and innovative use of reverse design schemes to form a disposable (removable) flushing pipe solution that is hung on the cavity mirror, so as to realize that the cavity mirror is not changed or improved without affecting the originality of the cavity mirror itself.
  • the cavity mirror has a flushing function at the same time, which greatly improves the convenience of operation of the cavity mirror.
  • FIG. 1 shows a schematic structural diagram of the ear endoscope 10 involved in this example. It can be seen from the figure that the otoscope 10 mainly includes a front end base 11 and a front end insertion portion 12 provided on the front end base 11 in terms of the composition structure.
  • the otoscope 10 with such a structure does not have a flushing function. It needs to cooperate with other instruments to perform operations such as cutting, peeling, and grinding, as well as different operations such as blood suction, wound washing, and liquid tissue suction.
  • the operator for example: a doctor only holds the instrument in one hand after holding the endoscope, and the operating space is very limited, resulting in the operator having to change various operating instruments back and forth.
  • this example provides a solution of a plug-in flushing tube 20, which is externally hung on the outside of the insertion portion 12 of the otoscope 10 in a disposable (that is detachable) manner, and can run along the endoscope The lengthwise distribution of the tip insertion part.
  • the otoscope 10 can have a flushing function at the same time, without the need to adjust or modify the internal structure of the otoscope 10; due to the disposable (removable) structure, it is convenient for use and later disinfection and maintenance.
  • FIG. 2 shows an example of the composition of the plug-in flushing pipe 20 in this embodiment.
  • the plug-in flushing pipe 20 given in this example mainly includes a connecting base 21, a sleeve 22, a flushing pipe assembly 23, and a connecting pipe and a control valve assembly (not shown in the figure) in the composition structure.
  • the connecting base 21 here is used as the basic part of the entire external flushing pipe 20, used to connect other components, and as the external connection part of the external flushing pipe 20, to be connected to the front end base 11 on the otoscope 10 Removable connection to achieve subsequent disposables.
  • connection base 21 and the upper front end base 11 of the ear endoscope 10 can be determined according to actual requirements, and is not limited here.
  • the connecting base 21 is provided with a connecting portion (such as a jack, etc.) that matches with the front end base 11 of the otoscope 10. Through the connecting portion, the connecting base 21 can be sleeved on the otoscope. A reliable and detachable connection structure is formed between the upper front base 11 of 10 and the upper front base 11 of the otoscope 10.
  • connection base 21 can be determined according to actual requirements, and are not limited here. It should be noted here that the detachable connection scheme between the connection base 21 and the upper front end base 11 of the otoscope 10 is not limited to this, and other feasible schemes can also be adopted as required.
  • the sleeve 22 in the external-hanging suction tube 20 is arranged on the connection base 21 and can be sleeved on the insertion portion 12 of the otoscope to serve as a mounting support member of the external-hanging suction tube assembly 23.
  • the sleeve 22 is originally tubular and has an inner diameter corresponding to the outer diameter of the otoscope insertion portion 12, so as to be able to be sleeved on the otoscope insertion portion 12, so as not to increase the outer diameter of the otoscope insertion portion 12. It does not affect the operation and function of the insertion part 12 of the ear endoscope.
  • the sleeve 22 is sleeved on the otoscope insertion portion 12, it needs to move synchronously with the otoscope insertion portion 12.
  • a stainless steel tube whose inner diameter matches the outer diameter of the otoscope insertion portion 12 is selected to form. In this way, both strength and safety and reliability are guaranteed.
  • the sleeve 22 with such a structure is arranged on the connection base 21 and can be sleeved on the otoscope insertion portion 12 when the connection base 21 is detachably connected to the front end base 11 of the otoscope 10.
  • the specific length of the sleeve 22 is matched with the length of the otoscope insertion portion 12, which is determined according to the actual situation, and is not limited here.
  • the structure of the sleeve 22 is not limited to the above-mentioned steel pipe, and other feasible materials may also be used.
  • the flushing tube assembly 23 in the external hanging flushing tube 20 is integrally placed on the outer wall of the sleeve 22 and distributed along the length of the sleeve, so as to be externally hung on the outside of the front end insertion portion 12 of the endoscope.
  • the flushing and sucking action can be performed by externally connecting the flushing and sucking tube assembly 23 distributed on the outer side of the front end insertion portion 12 of the endoscope to perform flushing and sucking actions, and then the flushing and/or sucking can be realized synchronously with the front end insertion portion 12 of the endoscope.
  • the flushing pipe assembly 23 includes a flushing pipe 23-1 and a connecting joint 23-2.
  • the flushing pipe 23-1 is integrally fixed on the outer wall of the sleeve 22 and distributed along the length of the sleeve 22.
  • the rear end of the flushing pipe 23-1 is connected with the connection joint 23-2 to communicate with different power sources; the front end of the flushing pipe 23-1 is provided with corresponding outlets for flushing and sucking.
  • the composition of the flushing pipe 23-1 here can be determined according to actual needs, such as a rigid pipe with a sufficiently small inner diameter, for example, such as a thin steel pipe with a small inner diameter, which can ensure a small outer diameter and ensure the entire external hanger The reliability of the structure.
  • connection and conduction structure In order to facilitate the connection and conduction between the flushing pipe 23-1 and the connection joint 23-2, the rear end of the flushing pipe 23-1 extends into the connection base 21, and the connection joint 23-2 is inserted into the connection base 21. And connect with the rear end of the flushing pipe 23-1 that extends into the connection base 21 to make a connection channel.
  • the specific connection and conduction structure can be determined according to actual needs.
  • connection joint 23-2 may be a luer joint or a pagoda joint, depending on the connection mode of the conduit.
  • the opening 23-3 at the front end of the flushing pipe 23-1 is arranged on the pipe wall at the front end of the flushing pipe 23-1.
  • the end of the front end of the flushing pipe 23-1 of this example is a closed structure, and at the same time, a corresponding opening 23-3 is opened on the outer side wall of the front end of the flushing pipe 23-1, that is, the opening direction of the opening 23-3 Opposite to the sleeve 22, the opening 23-3 communicates with the inner cavity of the flushing pipe 23-1.
  • the opening 23-3 is an oblique opening as a whole, and has a guiding inclined surface 23-4 in the direction of water discharge.
  • the guiding inclined surface 23-4 is opposite to the inner cavity of the flushing pipe 23-1 at a certain inclination angle, so as to oppose the inner cavity of the flushing pipe 23-1.
  • the direction of the water flowing out of the opening 23-3 is oriented and adjusted to prevent the flowing water from affecting the insertion portion 12 of the ear endoscope.
  • the guiding inclined surface 23-4 on the opening 23-3 and the axial direction of the flushing pipe 23-1 are arranged at an included angle ⁇ of 10°-30°.
  • the water flow from the opening 23-3 will be ejected at a certain oblique angle to the suction tube 23-1, so that when used with the ear endoscope insertion portion 12, it will be ejected from the opening 23-3
  • the water flow will not rush to the ear endoscope insertion part 12 to avoid visual disturbance, but it is still within the observable range of the ear endoscope insertion part 12, and the flushing effect can be seen through the ear endoscope insertion part 12.
  • the inclination angle of the guide slope 23-4 is too small, the water coming out of the opening 23-3 will directly touch the end of the ear endoscope insertion part 12, causing visual disturbance to the ear endoscope insertion part 12; if the guide slope 23 The inclination angle of -4 is too large, and the water flow from the opening 23-3 will gradually become cheaper in the vertical direction, thereby leaving the observable range of the insertion portion 12 of the ear endoscope.
  • the flushing pipe assembly 23 may include multiple flushing pipes 23-1 and multiple connecting joints 23-2.
  • the multiple flushing pipes 23-1 are respectively integrally fixed on the outer wall of the sleeve 22 and distributed along the length direction of the sleeve 22.
  • the arrangement scheme of each flushing tube 23-1 is as described above, and will not be repeated here, it is also realized that the multiple flushing tubes 23-1 are also arranged externally with respect to the otoscope insertion portion 12.
  • the number of flushing pipes 23-1 is determined according to actual needs. As an example, in this example, two functions of flushing and adsorption are required. Two flushing pipes 23-1 are used, which are connected to different power sources, respectively. Achieve flushing and suction function.
  • the control valve assembly in the plug-in flushing pipe 20 is used to connect with the connection joint 23-2 in the flushing pipe assembly 23, and at the same time externally connect the required power source, and control on-off.
  • control valve assembly can be determined according to actual requirements, and is not limited here.
  • a flushing pipe 23-1 is used and the flushing function is realized.
  • the control valve assembly can adopt a corresponding three-way valve assembly, the output end of which is in communication with the flushing pipe 23-1, and The input ends are respectively connected to a flushing source and/or a suction power source.
  • the three-way valve assembly can effectively control the on and off of the flushing source or the suction power source, and then the flushing and suction functions are realized at the flushing pipe 23-1.
  • the three-way valve assembly here can adopt a one-hand control three-way valve setting scheme.
  • the control valve assembly can be realized by using two one-way control valves.
  • the output end of the first one-way control valve It is connected to the first flushing pipe 23-1, and the input end of the first one-way control valve is connected to the flushing source; the output end of the second one-way control valve is connected to the second flushing pipe 23-1, and the second one-way control valve is connected to the second flushing pipe 23-1.
  • the input end of a single-way control valve is connected to the suction power source; this way, through two single-way control valves, the flushing source and the suction power source are controlled to be turned on and off respectively, and then the two flushing and suction pipes 23-1 are controlled.
  • the functions of flushing and suction are realized respectively.
  • a disposable suction tube 20 with an external hanging structure is formed, and the corresponding suction tube is attached to a sleeve with an inner diameter equivalent to the outer diameter of the front end insertion portion 12 of the otoscope 10; when used with the otoscope 10, The front end insertion portion 12 of the otoscope 10 passes through the sleeve, so that the suction tube is detachably fixed to the holder on the otoscope 10 through the connection base (that is, the front end base 11), and the suction tube runs along the otoscope. 10 The front end insertion portion 12 is externally hung on the outer side of the front end insertion portion 12 of the otoscope 10 in the longitudinal direction.
  • the rear end of the flushing pipe is connected to a connection joint (such as a Luer structure or a pagoda joint), and the connection joint is connected to the control valve assembly through a catheter, and the control valve assembly is connected to the positive pressure physiological saline (flushing catheter) and the negative pressure respectively. Press the suction pump (suction tube).
  • a connection joint such as a Luer structure or a pagoda joint
  • the control valve assembly is connected to the positive pressure physiological saline (flushing catheter) and the negative pressure respectively. Press the suction pump (suction tube).
  • the operator (such as a doctor) can perform multiple functions at the same time with both hands when performing otoscope surgery, except for endoscopic surgery In addition to normal operations, flushing, suction and other operations can also be performed at the same time.
  • the corresponding control valve assembly is controlled with one hand to connect the positive pressure physiological saline, so that the positive pressure physiological saline is flushed through the suction tube 20 outside the insertion part of the ear endoscope, without repeated insertion and removal of instruments;
  • the operator such as the doctor only needs to control the corresponding control valve assembly with one hand to connect the negative pressure suction pump during the operation.
  • the positive pressure physiological saline solution generates a negative pressure adsorption force through the suction tube 20 externally hung on the outside of the insertion part of the ear endoscope, so that the adsorption operation is performed without repeated insertion and removal of the instrument.
  • the disposable suction tube 20 with the external hanging structure can also be used on other endoscopes, which can also improve the convenience of operation, reduce the effect of wounds, and greatly improve the efficiency and safety of endoscopic surgery.
  • flushing tube 20 with the disposable external hanging structure is a detachable instrument attached to the endoscope as a whole, it can be used as a disposable product in the actual application process, which effectively solves the problem of difficult sterilization.
  • This example provides a flushing pipe 20 with a disposable external hanging structure on the basis of the solution of Example 1.
  • the flushing pipe in the solution of this example can be telescopic operation, which can further improve Its performance.
  • Fig. 4 shows an example of the composition of the external flushing pipe with a retractable structure given in this example.
  • the structure of the plug-in flushing pipe 20 mainly includes a connecting base 21, a sleeve 22, a flushing pipe assembly 23, a connecting piece 24, a driving piece 25, a connecting pipe and a control valve assembly (not shown in the figure) .
  • the basic structure and function of the connecting base 21 in this example are the same as those in Example 1. It is used as the basic part of the whole external flushing pipe 20, used to connect other components, and used as the external hanging flushing pipe 20.
  • the connecting part is detachably connected with the front end base 11 on the otoscope 10, so as to realize the subsequent disposable type.
  • the detachable connection structure between the connection base 21 and the upper front end base 11 of the ear endoscope 10 can be determined according to actual requirements, and is not limited here.
  • the basic structure and function of the sleeve 22 in this example are the same as those in Example 1, except that the length is shorter than the front end insertion part of an endoscope (such as an otoscope), and the specific structure is not described here.
  • an endoscope such as an otoscope
  • the basic structure and function of the flushing tube assembly 23 in this example are the same as those in Example 1, and are formed by the corresponding flushing tube 23-1 and the connecting joint 23-2. The specific structure is not described here.
  • control valve assembly in this example are the same as those in example 1, and will not be repeated here.
  • the flushing tube assembly 23 in this example is integrally arranged on the outer wall of the sleeve 22, and is connected with the sleeve 22 through the connecting piece 24 to form a movable assembly.
  • one end of the sleeve 22 is provided with a coupling 24; the flushing tube 23-1 in the flushing tube assembly 23 is integrally arranged on the outer wall of the sleeve 22 and distributed along the length of the sleeve, the flushing tube 23-1
  • the length of the pipe is longer than the sleeve 22, that is, the tip of the flushing pipe 23-1 extends out of the sleeve 22.
  • the extended length is determined according to actual needs.
  • the rear end of the flushing pipe 23-1 extends into the connecting piece 24 along with the sleeve; the connecting joint 23-2 in the flushing pipe assembly 23 is inserted in the connecting piece 24 and is connected to the flushing pipe 23-1. .
  • the driving member 25 is arranged on the connecting member 24 as an operating component to drive the connecting member 24 to drive the sleeve 22 and the flushing tube assembly 23 to move.
  • the specific structural scheme and structural form of the driving member 25 can be determined according to actual requirements, and are not limited here.
  • the driving member 25 may be a push plate.
  • the above-mentioned movable assembly composed of the flushing tube assembly 23, the sleeve 22, the connecting member 24 and the driving member 25 is movably connected to the connecting base 21 through the connecting member 24, and the whole is movable relative to the connecting base 21 Telescopic movement.
  • the connecting base 21 is further provided with a sliding structure that cooperates with the connecting member 24, so that the connecting member 24 can be integrally placed in the connecting base 21 through the sliding structure, and based on the sliding structure relative to the connection
  • the base 21 moves, and then drives the suction tube assembly 23 and the sleeve 22 to telescopically move relative to the connection base 21.
  • connection base 21 cooperates with the coupling 24, so that when the connection base 21 is detachably connected to the front end base 11 on the ear endoscope 10, the insertion portion 12 at the front end of the ear endoscope 10 can be inserted into the sleeve.
  • the flushing tube 23-1 distributed outside the sleeve 22 is hung outside the insertion part 12 as a whole.
  • the specific structure of the connecting member 24 and the specific structure of the sliding structure provided in the connection base 21 in this example can be determined according to actual needs, as long as the above functions can be achieved, and it is not limited here.
  • the connecting member 24 here can adopt a corresponding cylindrical structure, which is integrally sleeved on one end of the sleeve 22, and the flushing tube assembly 23 is connected through the connecting member 24 (specifically as above).
  • the inside of the connecting base 21 is a cavity structure, and has a detachable connecting portion that matches with the front end base 11 of the otoscope 10, and a seating portion that matches the connecting member 24, and the seating portion is provided There is a corresponding sliding structure to move the coupling member 24 in the seating part.
  • the coupling member 24 is placed in the seating part in the connection base 21, and can move in the seating part based on the sliding structure in the seating part, and the driving part 25 is connected to the coupling part 24 through the coupling base 21 to drive the coupling.
  • the member 24 moves; the suction tube assembly 23 and the sleeve 22 connected to the connecting member 24 extend from the tail end of the connecting base 21, and can be telescopically moved relative to the connecting base 21 under the driving of the connecting member 24.
  • the plug-in suction tube 20 constructed in this way is used in conjunction with the otoscope 10
  • the connecting base 21 is detachably connected to the front end base 11 of the otoscope 10
  • the insertion part of the front end of the otoscope 10 is now 12 will pass through the inner cavity of the connection base 21 and be inserted into the sleeve 22, and the flushing pipe 23-1 distributed on the outside of the sleeve 22 is hung outside the insertion part 12 as a whole.
  • the external suction tube 20 based on the telescopic structure can be driven by the driving member 25 to drive the connecting member 24 to move in the connecting base 21 during the operation, and then the connecting member 24 can drive the sleeve 22 and the externally distributed
  • the flushing tube 23-1 moves axially relative to the insertion portion 12 of the front end of the otoscope 10 in the sleeve 22, so that the flushing tube 23-1 can perform telescoping motion relative to the insertion portion 12 of the front end of the otoscope 10.
  • the front end of the suction tube 23-1 can be extended from the front end of the insertion part 12 on the otoscope 10, so that the front end of the suction tube 23-1 can be closer to the lesion, which is convenient for specific washing and suction operations;
  • the front end of the suction tube 23-1 can be retracted without affecting the normal operation of the insertion portion 12 at the front end of the otoscope 10.
  • the sleeve 22 in this example is shorter than the length of the otoscope insertion portion 12 inserted therein, the sleeve 22 will not interfere with the otoscope insertion portion 12 during the movement relative to the otoscope insertion portion 12. Normal operation.
  • the tip of the flushing tube 23-1 can be stretched freely and can be extended from the tip of the insertion portion 12 at the tip of the otoscope 10 during operation, the tip opening does not necessarily need to be opened on the tube wall as in Example 1. , Can be opened directly at the end.
  • this solution can be used as a disposable product to solve the problem of difficult disinfection
  • This solution can adopt a retractable flushing and suction tube solution, which does not affect the viewing function of the endoscope, and can better meet the requirements of flushing or sucking surgery, and facilitate the doctor to complete the steps that require coordinated operation of both hands. For example, flushing water while grinding the ear bones can reduce the flying of bone debris and so on.

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Abstract

一种腔镜用外挂式冲吸管（20）及腔镜，外挂式冲吸管（20）中的冲吸管组件（23）通过可拆卸结构与腔镜前端的基座（11）连接，并可沿腔镜前端插入部（12）的长度方向分布在腔镜前端插入部（12）外侧。外挂式冲吸管（20）及腔镜摒弃现有腔镜前端上功能改进方案需要采用固定结构以保证产品可靠性的惯性设计思维，形成可抛弃式外挂式冲吸管（20）的方案，从而实现在不对腔镜进行变动或改进且不影响腔镜本身原有的功能或性能的情况下，使得腔镜同时具备冲吸功能，这样大大提高腔镜手术操作的便捷性。

Description

一种腔镜用外挂式冲吸管及腔镜 技术领域
本发明涉及医疗器械，具体涉及腔镜仪器技术。
背景技术
内窥镜可以经人体的天然孔道，或者是经手术做的小切口进入人体内，据此利用内窥镜的微创手术，因为病人创伤小，手术风险低，术后复原快，创面外观影响小等多项特色，近年广泛在各种外科手术领域中得到重视和开展。例如耳内窥镜手术在胆脂瘤，中耳炎等多项适用症上取得了重要的进展，获得广泛使用。
众所周知，耳内窥镜手术很大的一个制约就是耳道一般仅有4至5厘米的直径，操作空间非常有限，医师两手操作十分拥挤，如果需要使用器械结合内窥镜进行切割、剥离、磨削等手术和吸除血液、冲洗创口，吸除液体组织等等不同的操作，医师必须来回更换多样操作器械，单手操作，完成手术，非常不便。或者需要两个医师来配合操作，这不仅增加成本，同样也存在操作不便的问题。
由此如何解决现有内窥镜在手术过程中所存在的问题是本领域亟需解决的问题。
公开号CN109349989A的中国专利申请，其公开了一种多功能耳部硬性内窥镜，该方案主要是改变内窥镜结构设计，在内窥镜加上具有调节亮度的功能，便于单手调整亮度，也增加除雾管的设计，解决内窥镜与人体内部温差造成镜面结雾的问题。调光开关、除雾管、与内窥镜是一整体结构，增加了产品的复杂度，也增加生产成本，而内窥镜结构及外形改变，也限制了内窥镜的使用。除雾管直径细小，接口复杂，术后清洗消毒困难，增加使用风险。
再者，该方案中设计负压吸附针，用于手术时吸取血水等污秽物，虽然吸附针是挂在内窥镜上，但是该吸附针不能由执持内窥镜的手操作。
另一种常见的构造是将冲吸通道融入腔镜插入部的设计，因为冲吸管加入 及外部保持圆管造型，将会使整个内窥镜前端的直径变粗，这样会限制内窥镜的使用，例如在耳道中使用时，由于耳道空间的限制，其他器械将无法配合使用，这将使耳内窥镜手术无法实施。
发明内容
针对现有腔镜(如耳内镜等)上提高操作便捷性改进方案存在结构复杂，影响腔镜基本性能，且对手术实质问题没有太大助益的问题。本领域需要一种结构简单，使用便捷且不能够影响腔镜基本性能的设计，用以提高操作便捷性。
为此，本发明的目的在于提供一种腔镜用外挂式冲吸管，其整个结构简单，能够在不影响腔镜基本结构和性能的情况下，大大提高腔镜操作的功能性及便捷性。在此基础上，本发明还进一步设计该外挂式冲吸管为可伸缩的形式，其可实现单人操作腔镜以及基于冲吸管的其它辅助操作功能，有助于提高手术效率。
为了达到上述目的，本发明提供的腔镜用外挂式冲吸管，所述外挂式冲吸管中的冲吸管组件通过可拆卸结构与腔镜前端的基座连接，并可沿腔镜前端插入部的长度方向分布在腔镜前端插入部外侧。
进一步的，所述外挂式冲吸管包括：
连接基座，所述连接基座可拆卸与腔镜前端的基座连接；
套管，所述套管设置在连接基座上，并在所述连接基座与腔镜前端基座可拆卸连接时，整体套设在腔镜前端的插入部上；
冲吸管组件，所述冲吸管组件置于所述套管的外壁上，并沿套管的长度方向分布；所述冲吸管组件连通冲洗源和/或吸附动力源。
进一步的，所述外挂式冲吸管还包括控制阀组件，所述控制阀组件与冲吸管组件连接，并外接冲洗源和/或吸附动力源。
进一步的，所述冲吸管组件固定设置在套管的外壁上。
进一步的，所述冲吸管组件及套管可沿所述腔镜插入部的外壁移动。
进一步的，所述冲吸管组件中包括至少一个管体。
进一步的，所述冲吸管组件中的管体通过连接接头与控制阀组件连接。
进一步的，所述连接接头为鲁尔接头或宝塔接头。
进一步的，所述冲吸管组件中管体上的出口设置在管壁上或管体的端部。
进一步的，所述出口设置有导向斜面，所述导向斜面与管体轴向方向呈10°-30°夹角。
为了达到上述目的，本发明提供的具有外挂式冲吸管的腔镜，包括腔镜本体以及上述的外挂式冲吸管，所述外挂式冲吸管通过其上可拆卸的连接基座套设在腔镜本体上。
本发明提供的方案摒弃现有腔镜前端(特别是插入部)上功能改进方案需要采用固定结构以保证产品可靠性的惯性设计思维，创新的采用逆向设计方案，形成可抛弃式(即可拆式)外挂在腔镜上冲吸管方案，从而实现在不对腔镜进行变动或改进且不影响腔镜本身原有的功能或性能(如检视功能)的情况下，使得腔镜同时具备冲吸功能，这样大大提高腔镜操作的便捷性。
再者，本方案采用可抛弃式(即可拆式)的结构，不需要对腔镜本身进行任何的改动或设计，从而不会增加腔镜组成结构的复杂度；进一步整个冲吸管采用外挂式的方式设置在腔镜前端插入部上，对腔镜前端插入部的粗细影响不大，完全不影响腔镜前端插入部使用，继而不影响腔镜已有的基本功能或性能；基于可抛弃式(即可拆式)的结构，完全不影响腔镜本身的维护或消毒操作，实用性强。
另外，本方案采用的可抛弃式(即可拆式)的外挂式冲吸管设计方案，配合腔镜本身，使得操作者可通过双手协同操作，同时实现腔镜本身的功能以及冲吸功能，避免来回更换多样操作器械的问题，大大提高腔镜使用时的便捷性。
附图说明
以下结合附图和具体实施方式来进一步说明本发明。
图1为本发明实例1中涉及到的耳内镜结构示意图；
图2为本发明实例1中固定结构的外挂式冲吸管的结构示意图；
图3为本发明实例1中外挂式冲吸管的冲洗管管体出口的结构示意图；
图4为本发明实例2中可伸缩结构的外挂式冲吸管的结构示意图。
具体实施方式
为了使本发明实现的技术手段、创作特征、达成目的与功效易于明白了解，下面结合具体图示，进一步阐述本发明。
腔镜(如耳内镜等)作为一种精密的医疗仪器，基于其特殊的使用环境，对腔镜前端插入部尺寸结构提出的严格要求，即要求腔镜前端插入部尺寸足够的小，结构足够的可靠。
在此情况下，为了使原本不具备冲吸功能的腔镜，具有能够与腔镜本身进行协同使用的冲吸功能，本方案摒弃直接改进腔镜的固有结构，并采用固定结构以保证腔镜可靠性的惯性设计思维，创新的采用逆向设计方案，形成可抛弃式(即可拆式)外挂于腔镜的冲吸管方案，从而实现在不对腔镜进行变动或改进且不影响腔镜本身原有的功能或性能(如检视功能)的情况下，使得腔镜同时具备冲吸功能，这样大大提高腔镜操作的便捷性。
下面以耳内镜为例来说明一下本发明方案的实施过程。
实例1
参见图1，其所示为本实例中涉及到的耳内镜10的结构示意图。由图可知，该耳内镜10在组成结构上主要包括前端基座11以及设置在前端基座11上前端插入部12。
如此结构的耳内镜10不具备冲吸功能，其在使用时需要配合其它的器械进行切割、剥离、磨削等手术和吸除血液、冲洗创口，吸除液体组织等等不同的操作，由于操作者(例如：医生)一手持内窥镜后仅有单手持器械，加以操作空间非常有限，造成操作者必须来回更换多样操作器械。
对此耳内镜10，本实例给出一种外挂式冲吸管20的方案，其以可抛弃式(即可拆卸)的方式外挂在耳内镜10的插入部12外侧，并可沿腔镜前端插入部的长度方向分布。由此可使得耳内镜10同时具有冲吸功能，无需对耳内镜10的内部结构进行调整或改动；由于可抛弃式(即可拆卸)的结构方式，方便使用和后期的消毒维护。
参见图2，其所示为本实例中外挂式冲吸管20的一种组成示例。由图可知，本实例给出的外挂式冲吸管20在组成结构上主要包括连接基座21，套管22、冲吸管组件23以及连接管和控制阀组件(图中未示出)。
这里的连接基座21作为整个外挂式冲吸管20的基础件，用于连接其它的 组成部件，并作为外挂式冲吸管20对外的连接部件，以与耳内镜10上的前端基座11进行可拆卸连接，以实现后续的可抛弃式。
对于连接基座21与耳内镜10上前端基座11之间的可拆卸连接结构，可根据实际需求而定，此处不加以限定。
作为举例，该连接基座21上设置有与耳内镜10上前端基座11相配合的连接部(如插孔等)，通过该连接部，该连接基座21可套设在耳内镜10上前端基座11上，并与耳内镜10上前端基座11之间形成可靠性可拆卸连接结构。
另外，该连接基座21的具体构成方案以及结构形式可根据实际需求而定，此处不加以限定。这里需要说明的，该连接基座21与耳内镜10上前端基座11之间可拆卸连接方案并不限于此，根据需要还可以采用其它的可行方案。
本外挂式冲吸管20中的套管22安置在连接基座21上，并可套设在耳内镜插入部12上，以作为外挂式冲吸管组件23的安装支撑部件。
该套管22整体为原管状且内径与耳内镜插入部12的外径相对应，以实现可套设在耳内镜插入部12上，这样不对耳内镜插入部12的外径造成大的影响，不影响耳内镜插入部12的操作和功能。
作为举例，考虑到套管22套设在耳内镜插入部12上，需要随耳内镜插入部12同步动作，这里选择内径与耳内镜插入部12外径相配合的不锈钢管来构成，这样具有既保证强度又能够保证安全可靠性。
如此结构的套管22设置在连接基座21上，并能够随连接基座21与耳内镜10上前端基座11可拆卸连接时正好套设在耳内镜插入部12上。
另外，对于该套管22的具体长度，与耳内镜插入部12的长度配合，根据实际情况下而定，此处不加以限定。该套管22构成也不限于上述的钢管，也可以采用其它的可行材质来构成。
本外挂式冲吸管20中的冲吸管组件23整体置于套管22的外壁上，并沿套管的长度方向分布，从而实现外挂在腔镜前端插入部12的外侧。通过如此分布在腔镜前端插入部12外侧的冲吸管组件23外接相应的动力源，即可进行冲、吸动作，继而可配合腔镜前端插入部12同步实现“冲”和/或“吸”功能。
作为举例，本冲吸管组件23中包括一根冲吸管23-1和连接接头23-2。该冲吸管23-1整体固定设置在套管22的外壁上，并沿套管22的长度方向分布。 该冲吸管23-1的后端与连接接头23-2连接，以连通不同的动力源；该冲吸管23-1的前端开设有相应的出口，以进行冲、吸动作。
这里的冲吸管23-1的构成可根据实际需求而定，如采用内径足够小的硬质管构成，作为举例，如小内径的细钢管，这样既能够保证小的外径，又保证整个外挂结构的可靠性。
为了便于冲吸管23-1与连接接头23-2之间的连接导通，这里冲吸管23-1的后端伸入到连接基座21内，而连接接头23-2安插在连接基座21上，并与伸入到连接基座21内的冲吸管23-1的后端进行连接通道。对于具体的连接导通结构可根据实际需求而定。
这里连接接头23-2的具体构成方案，可根据实际需求而定，此处不加以限定。作为举例，该连接接头23-2可以采用鲁尔接头或者宝塔接头，具体根据导管的连接方式而定。
由于本冲吸管23-1在实现冲吸操作时，需要同步配合耳内镜插入部12的操作，为了避免冲吸管23-1在进行冲吸操作时对耳内镜插入部12操作的影响，本实例将冲吸管23-1前端的开口23-3设置在冲吸管23-1前端的管壁上。
参见图3，本实例冲吸管23-1前端的端部为密闭结构，同时在冲吸管23-1前端管壁的外侧壁处开设有相应的开口23-3，即开口23-3的开口方向与套管22相对，该开口23-3与冲吸管23-1内腔连通。
再者，该开口23-3整体为一斜向开口，在出水方向上具有导向斜面23-4，该导向斜面23-4呈一定倾斜角度与冲吸管23-1的内腔相对，以对从开口23-3流出的水流方向进行导向调整，避免流出的水流对耳内镜插入部12形成影响。作为优选，开口23-3上的导向斜面23-4与冲吸管23-1轴向方向之间呈10°-30°夹角θ设置。通过如此设置的导向斜面23-4，使得从开口23-3出来的水流将与冲吸管23-1呈一定倾斜角度射出，从而在配合耳内镜插入部12使用时，从开口23-3射出的水流将不会冲到耳内镜插入部12，避免造成视觉干扰，但是仍然在耳内镜插入部12可观察范围内，可以通过耳内镜插入部12看到冲洗的效果。
如果导向斜面23-4的倾斜角度过小，从开口23-3出来的水将会直接沾到耳内镜插入部12的端部，对耳内镜插入部12造成视觉干扰；如果导向斜面23-4 的倾斜角度过大，从开口23-3出来的水流将会逐渐向垂直方向便宜，从而离开耳内镜插入部12可观察范围。
作为替代方案，本冲吸管组件23中可包括多根冲吸管23-1和多个连接接头23-2。该多根冲吸管23-1分别整体固定设置在套管22的外壁上，并沿套管22的长度方向分布。这里每根冲吸管23-1的设置方案如上所述，此处不加以赘述，同样实现多根冲吸管23-1相对于耳内镜插入部12也为外挂式的设置。
对于冲吸管23-1的数量，则根据实际需求而定，作为举例，本实例中需要实现冲洗和吸附两种功能，则采用两根冲吸管23-1，分别接入不同的动力源，分别实现冲洗和吸除功能。
本外挂式冲吸管20中的控制阀组件用于与冲吸管组件23中的连接接头23-2连接，同时外接所需的动力源，并控制通断。
对于该控制阀组件的具体构成可根据实际需求而定，此处不加以限定。
作为举例，针对本实例中采用一根冲吸管23-1，并实现冲吸功能的设置方案，该控制阀组件可采用相应的三通阀组件，其输出端与冲吸管23-1连通，而输入端分别连接冲洗源和/或吸除动力源。这样通过三通阀组件可有效控制冲洗源或吸除动力源的接通和断开，继而在冲吸管23-1处实现冲洗和吸除功能。为了便于单手操作，这里的三通阀组件可采用单手控制的三通阀设置方案。
另外针对本实例中采用两根冲吸管23-1，分别用于进行冲洗和吸附的设置方案，该控制阀组件可采用两个单通控制阀来实现，第一个单通控制阀的输出端与第一根冲吸管23-1连通，该第一个单通控制阀的输入端与冲洗源连通；第二个单通控制阀输出端与第二根冲吸管23-1连通，该第二个单通控制阀的输入端与吸除动力源连通；这种通过两个单通控制阀来分别控制冲洗源和吸除动力源的接通和断开，继而控制两根冲吸管23-1分别实现冲洗和吸除功能。
据此方案构成的可抛弃式外挂结构的冲吸管20，其上相应的冲吸管附着于内径和耳内镜10前端插入部12外径相当的套管上；在配合耳内镜10使用时，使得耳内镜10前端插入部12穿过套管，使得冲吸管透过连接基座与耳内镜10上的卡座(即前端基座11)可拆卸的固定，同时冲吸管沿耳内镜10前端插入 部12长度方向外挂于耳内镜10前端插入部12的外侧。
再者，冲吸管的后端与连接接头(如鲁尔结构或宝塔接头)连接，连接接头则通过导管连接控制阀组件，控制阀组件分别接入正压生理食盐水(冲水导管)和负压吸气泵(吸气导管)。使用时通过控制阀组件的调节，使得冲吸管分别实现“冲”或者“吸”的功能。
本可抛弃式外挂结构的冲吸管20在与耳内镜配合使用时，使得操作者(如医师)在进行耳内镜手术时，通过双手可以同时完成多个功能的操作，除了内窥镜手术正常的操作外，还可以同时进行冲洗、吸除等操作。
例如，在耳内镜手术过程中进行切割、剥离、磨削等手术时，需要进行冲洗创口时，此时无需插入其它器械，也无需他人辅助，操作者(如医师)在手术的同时，自己则通过单手控制相应的控制阀组件以接通正压生理食盐水，使得正压生理食盐水通过外挂在耳内镜插入部外侧的冲吸管20对创口进行冲洗，无需反复插拔器械；如在手术过程中需要吸除血液、或吸除液体组织时，此时操作者(如医师)也只需在手术过程中，通过单手控制相应的控制阀组件以接通负压吸气泵，使得正压生理食盐水通过外挂在耳内镜插入部外侧的冲吸管20内产生负压吸附力，从而进行吸附操作，无需反复插拔器械。
如此，对于因耳道空间限制的耳内窥镜手术来说，将大大提高耳内窥镜手术操作的便捷性，大幅提高耳内镜手术的效率和安全性。
同样的，本可抛弃式外挂结构的冲吸管20用在其他内窥镜上，同样可以达到提高操作便捷性，减小创口的效果，并大幅提高内窥镜手术的效率和安全性。
另外，由于本可抛弃式外挂结构的冲吸管20整体为拆卸的附加于内窥镜，可分离的器械，实际应用过程中可以作为一次性使用产品，这样有效解决消毒困难的问题。
实例2
本实例在实例1方案的基础上给出一种可抛弃式外挂结构的冲吸管20，不同于实例1中冲吸管固定设置，本实例方案中的冲吸管可进行伸缩操作，由此可以进一步提高其性能。
参见图4，其所示为本实例给出的可伸缩结构的外挂式冲吸管的组成示例。
由图可知，本外挂式冲吸管20在组成结构主要包括连接基座21、套管22、冲吸管组件23、联结件24、驱动件25以及连接管和控制阀组件(图中未示出)。
本实例中的连接基座21与实例1中的基本结构与功能与实例1中相同，作为整个外挂式冲吸管20的基础件，用于连接其它的组成部件，并作为外挂式冲吸管20对外的连接部件，以与耳内镜10上的前端基座11进行可拆卸连接，以实现后续的可抛弃式。对于连接基座21与耳内镜10上前端基座11之间的可拆卸连接结构，可根据实际需求而定，此处不加以限定。
本实例中的套管22的基本结构与功能与实例1中相同，只是长度短于内窥镜(如耳内镜)的前端插入部，具体构成此处不加以赘述。
本实例中的冲吸管组件23的基本组成结构与功能与实例1中相同，由相应的冲吸管23-1和连接接头23-2配合构成，具体构成此处不加以赘述。
本实例中的控制阀组件的基本组成结构与功能与实例1中相同，此处不加以赘述。
在此基础上，本实例中的冲吸管组件23整体设置在套管22的外壁上，并通过联结件24与套管22连接形成一个可移动组件。
具体的，套管22的一端设置有联结件24；冲吸管组件23中的冲吸管23-1则整体设置在套管22的外壁上，并沿套管的长度方向分布，冲吸管23-1的长度长于套管22，即冲吸管23-1顶端伸出套管22，对于伸出的长度，则根据实际需求而定，如可与外挂式冲吸管可伸缩调节的距离相对应，但并不限于此；冲吸管23-1的后端则随套管伸入联结件24中；冲吸管组件23中的连接接头23-2则安插在联结件24中并与冲吸管23-1配合连接。
在此基础上驱动件25设置在联结件24上，作为操作部件，以驱动联结件24带动套管22和冲吸管组件23移动。对于该驱动件25的具体结构方案和结构形式可根据实际需求而定，此处不加以限定。作为举例，该驱动件25可以为推板。
上述由冲吸管组件23、套管22，联结件24以及驱动件25配合构成的可移动组件，则通过联结件24与连接基座21进行可移动连接，其整体可相对于连接基座21进行伸缩移动。
作为举例，本实例在连接基座21中进一步设置有与联结件24相互配合的滑动结构，这样联结件24则可通过滑动结构整体安置在连接基座21中，并基于该滑动结构相对于连接基座21进行移动，继而带动冲吸管组件23和套管22相对于连接基座21进行伸缩移动。
同时，通过该连接基座21与联结件24配合，使得连接基座21在与耳内镜10上的前端基座11进行可拆卸连接时，耳内镜10前端的插入部12能够插入到套管22中，从使得分布在套管22外侧冲吸管23-1整体外挂在插入部12外侧。
对于本示例中的联结件24的具体构成结构以及连接基座21内设置的滑动结构的具体构成方案，可根据实际需求而定，只要能够达到上述功能即可，此处不加以限定。
作为举例，这里联结件24可采用相应筒状结构，其整体套设在套管22的一端上，而冲吸管组件23通过该联结件24进行连接设置(具体如上)。
与配合的，连接基座21的内部为空腔结构，并具有与耳内镜10上前端基座11相配合的可拆卸连接部，以及与联结件24相配合的安置部，该安置部设置有相应的滑动结构，以使联结件24在安置部内移动。
如此，联结件24安置在连接基座21内的安置部内，并基于安置部内的滑动结构可在安置部内进行移动，而驱动件25则穿过连接基座21与联结件24连接，以驱动联结件24移动；与联结件24连接的冲吸管组件23和套管22则从连接基座21的尾端中伸出，并在联结件24的带动下可相对于连接基座21进行伸缩移动。
这样构成的外挂式冲吸管20在与耳内镜10配合使用时，通过连接基座21与耳内镜10上的前端基座11进行可拆卸连接时，此时耳内镜10前端的插入部12则将穿过连接基座21内腔，并插入到套管22中，分布在套管22外侧冲吸管23-1整体外挂在插入部12外侧。
而使得操作者(如医师)在进行耳内镜手术时，通过双手可以同时完成多个功能的操作，除了内窥镜手术正常的操作外，还可以同时进行冲洗、吸附等操作，具体实现方式如实例1所述，此处不加以赘述。
另外，基于本伸缩结构的外挂式冲吸管20在手术过程中，可通过推动驱 动件25带动联结件24在连接基座21内移动，再由联结件24带动套管22以及分布在其外侧的冲吸管23-1相对于套管22内的耳内镜10前端的插入部12进行轴向移动，从而使得冲吸管23-1可相对于耳内镜10前端的插入部12进行伸缩动作，这样在需要时使得冲吸管23-1的前端能够从耳内镜10上插入部12的前端伸出，使得冲吸管23-1的前端能够更加接近病灶，便于具体的冲洗和吸除操作；在不需要时，可使得冲吸管23-1的前端缩回，不影响耳内镜10前端的插入部12的正常操作。
另外，由于本实例中套管22长度短于插入在其内的耳内镜插入部12的长度，故而套管22相对于耳内镜插入部12移动过程中不会干扰耳内镜插入部12的正常操作。
再者，由于冲吸管23-1的前端能够自由伸缩，在操作时可从耳内镜10前端的插入部12的前端伸出，故其前端开口不一定需要如实例1中开设在管壁上，可直接开设在端部。
基于上述实例形成的可抛弃式外挂结构的冲吸管方案在具体应用时，将具有如下优异性能：
1)替医师双手同时额外增加两项操作的能力，特别在因耳道空间限制，进行耳内窥镜手术时，可大幅降低这类受空间限制的内窥镜手术操作的难度，提高这类手术的效率和安全性；
2)本方案同样可应用于其他内窥镜手术，相比使用传统内窥镜同样可以达到减少和减小创口的效果；
3)本方案整体结构简单，易于操作，同时无需对内窥镜进行任何的改进或重新设计，不增加内窥镜的结构复杂度；
4)本方案作为附加于内窥镜可分离的器械，可以做为一次性使用产品，可解决消毒困难的问题；
5)本方案可采用可伸缩的冲吸管方案，不影响内窥镜的检视功能，能够更好的配合冲或吸的手术要求，便利医师完成需要双手协同操作的步骤。例如磨耳骨的同时冲水，可以降低骨屑飞扬等等。
以上显示和描述了本发明的基本原理、主要特征和本发明的优点。本行业 的技术人员应该了解，本发明不受上述实施例的限制，上述实施例和说明书中描述的只是说明本发明的原理，在不脱离本发明精神和范围的前提下，本发明还会有各种变化和改进，这些变化和改进都落入要求保护的本发明范围内。本发明要求保护范围由所附的权利要求书及其等效物界定。

Claims (10)

  1. 腔镜用外挂式冲吸管，其特征在于，所述外挂式冲吸管中的冲吸管组件通过可拆卸结构与腔镜前端的基座连接，并可沿腔镜前端插入部的长度方向分布在腔镜前端插入部外侧。
  2. 根据权利要求1所述的腔镜用外挂式冲吸管，其特征在于，所述外挂式冲吸管包括：
    连接基座，所述连接基座可拆卸与腔镜前端的基座连接；
    套管，所述套管设置在连接基座上，并在所述连接基座与腔镜前端基座可拆卸连接时，整体套设在腔镜前端的插入部上；
    冲吸管组件，所述冲吸管组件置于所述套管的外壁上，并沿套管的长度方向分布；所述冲吸管组件连通冲洗源和/或吸附动力源。
  3. 根据权利要求2所述的腔镜用外挂式冲吸管，其特征在于，所述外挂式冲吸管还包括控制阀组件，所述控制阀组件与冲吸管组件连接，并外接冲洗源和/或吸附动力源。
  4. 根据权利要求2所述的腔镜用外挂式冲吸管，其特征在于，所述冲吸管组件固定设置在套管的外壁上。
  5. 根据权利要求2所述的腔镜用外挂式冲吸管，其特征在于，所述冲吸管组件及套管可沿所述腔镜插入部的外壁移动。
  6. 根据权利要求2或4或5所述的腔镜用外挂式冲吸管，其特征在于，所述冲吸管组件中包括至少一个管体。
  7. 根据权利要求6所述的腔镜用外挂式冲吸管，其特征在于，所述冲吸管组件中的管体通过连接接头与控制阀组件连接。
  8. 根据权利要求6所述的腔镜用外挂式冲吸管，其特征在于，所述冲吸管组件中管体上的出口设置在管壁上或管体的端部。
  9. 根据权利要求8所述的腔镜用外挂式冲吸管，其特征在于，所述出口设置有导向斜面，所述导向斜面与管体轴向方向呈10°-30°夹角。
  10. 具有外挂式冲吸管的腔镜，包括腔镜本体，其特征在于，还包括权利要求1-9中任一项所述的外挂式冲吸管，所述外挂式冲吸管通过其上连接基座拆卸的套设在腔镜本体上。
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