WO2025061161A1 - 抬钳座和内窥镜 - Google Patents

抬钳座和内窥镜 Download PDF

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Publication number
WO2025061161A1
WO2025061161A1 PCT/CN2024/120136 CN2024120136W WO2025061161A1 WO 2025061161 A1 WO2025061161 A1 WO 2025061161A1 CN 2024120136 W CN2024120136 W CN 2024120136W WO 2025061161 A1 WO2025061161 A1 WO 2025061161A1
Authority
WO
WIPO (PCT)
Prior art keywords
guide
clamp seat
guide section
lifting clamp
lifting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2024/120136
Other languages
English (en)
French (fr)
Inventor
龚鹏程
荆峰
邹银辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sonoscape Medical Corp
Original Assignee
Sonoscape Medical Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sonoscape Medical Corp filed Critical Sonoscape Medical Corp
Publication of WO2025061161A1 publication Critical patent/WO2025061161A1/zh
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • 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
    • A61B1/012—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 characterised by internal passages or accessories therefor
    • A61B1/018—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 characterised by internal passages or accessories therefor for receiving instruments

Definitions

  • the present disclosure relates to the field of medical technology, and in particular to a forceps lifting seat and an endoscope.
  • endoscopic imaging can effectively extend human vision and is widely used in imaging diagnosis and image-guided treatment in many fields such as the digestive tract, cardiovascular and cerebrovascular system, urinary system, and respiratory system, greatly promoting the accuracy of disease examination.
  • the part of the endoscope that enters the human body is a slender insertion portion, which is usually provided with an instrument channel.
  • the medical instrument can be passed through the instrument channel to reach the far end of the endoscope to assist in diagnosis or treatment.
  • Most existing endoscopes are provided with a lifting clamp seat to adjust the direction in which the medical instrument extends out of the instrument channel.
  • a lifting forceps seat includes a rotating shaft end and a distal end, and a first guide section extending from the distal end toward the rotating shaft end is provided on the front of the lifting forceps seat, and the first guide section has a connecting end away from the rotating shaft end, and the first guide section is configured to guide the medical device to a preset extension path or a preset withdrawal path;
  • the lifting forceps seat is also provided with a second guide section, and the second guide section extends obliquely from the connecting end toward the back of the lifting forceps seat and away from the rotating shaft end; wherein the second guide section is configured to support the step portion of the first specification instrument located on the withdrawal path, so that the step portion moves in a direction away from the lifting forceps seat.
  • the lifting clamp seat provided by the present disclosure, during the process of retracting the first specification instrument with the step portion,
  • the step portion is supported by the second guide section so that the step portion moves in a direction away from the forceps lifting seat, which can avoid interference between the step surface of the step portion facing the forceps lifting seat and the end surface of the distal end of the forceps lifting seat, thereby avoiding jamming during the withdrawal process of the first specification instrument with the step portion.
  • the first specification instrument can be a medical device of a larger size.
  • the second guide section supports and guides the mushroom head end of the electrosurgical excision and drainage stent, so that the mushroom head end will not get stuck during withdrawal; for example, when the first specification instrument is a biopsy forceps, the second guide section supports and guides the step portion of the biopsy forceps, so that the step portion will not get stuck during withdrawal. Therefore, such a forceps lifting seat can significantly reduce the jamming of the first specification instrument during the withdrawal process and enhance the user's clinical experience.
  • the first guide section includes two first guide surfaces, the two first guide surfaces are symmetrically arranged about the length axis of the lifting clamp seat, and an angle greater than 90° and less than 180° is formed between the two first guide surfaces.
  • the first guide segment further includes a first central groove formed between the two first guide surfaces.
  • the cross-section of the first central groove is arc-shaped.
  • the second guide section includes two second guide surfaces, and the two second guide surfaces are symmetrically arranged about the length axis of the lifting clamp seat.
  • the angle between the extension surface of the first guide surface toward the distal end of the lifting clamp seat and the second guide surface is greater than or equal to 30° and less than or equal to 60°.
  • a third guide section is also provided on the lifting clamp seat, and the third guide section extends obliquely from the connecting end toward the back side of the lifting clamp seat and away from the rotating shaft end.
  • the third guide section is located in the middle area of the second guide section, and the third guide section is configured to guide the second specification instrument to a preset extension path.
  • the second guide segment includes two second guide surfaces, and the third guide segment is formed between the two second guide surfaces.
  • the angle between the second guide surface and the side wall of the third guide segment is not less than 135°.
  • the third guide section includes two third guide surfaces, the two third guide surfaces are symmetrically arranged about the length axis of the lifting clamp seat, and an angle greater than 90° and less than 180° is formed between the two third guide surfaces.
  • the first guide section includes two first guide surfaces, the two first guide surfaces are The length axis of the clamp seat is symmetrically arranged, and the angle between the two first guide surfaces is smaller than the angle between the two third guide surfaces.
  • a third central groove is provided on the third guide segment, and the third central groove is formed between the two third guide surfaces.
  • the first guide section includes a first center groove and two first guide surfaces, the two first guide surfaces are symmetrically arranged about the length axis of the lifting clamp seat, the first center groove is formed between the two first guide surfaces, and the angle between the central axis of the first center groove and the central axis of the third center groove is greater than or equal to 10° and less than or equal to 45°.
  • the cross-section of the third central groove is arc-shaped.
  • the third center groove has an arc diameter, and the arc diameter is no greater than 19G.
  • the third guide segment has a tangent point that is tangent to a second-specification instrument having a predetermined diameter, and the first guide segment and the second guide segment intersect at the tangent point.
  • the second guide section includes a multi-stage guide surface, and when the first specification instrument is withdrawn on the withdrawal path, the multi-stage guide surface contacts the step portion in sequence.
  • an endoscope is provided.
  • the endoscope includes a head end portion, and any one of the forceps lifting seats described above is provided on the head end portion.
  • the tip end includes an ultrasound probe, and a central axis of the ultrasound probe is coplanar with a center line of the extension path.
  • FIG1 is a schematic diagram of an endoscope according to an exemplary embodiment of the present disclosure
  • FIG. 2 is a perspective view of a head end portion according to an exemplary embodiment of the present disclosure
  • FIG3 is a perspective view of a head end portion according to an exemplary embodiment of the present disclosure, wherein a first specification instrument is inserted into the instrument channel;
  • FIG4 is a partial cross-sectional view of the head end portion shown in FIG3;
  • FIG5 is a perspective view of a head end portion according to an exemplary embodiment of the present disclosure, wherein a second specification instrument is inserted into the instrument channel;
  • FIG6 is a partial cross-sectional view of the head end portion shown in FIG5;
  • FIG. 7 is a perspective view of a lifting clamp seat according to an exemplary embodiment of the present disclosure.
  • FIG8 is a perspective view of a lifting clamp seat according to an exemplary embodiment of the present disclosure.
  • FIG9 is a three-dimensional view of the lifting clamp seat shown in FIG8 in another direction;
  • FIG10 is a cross-sectional view of the lifting clamp seat shown in FIG8;
  • FIG. 11 is a partial enlarged view of a cross section of a lifting forceps seat according to an exemplary embodiment of the present disclosure, wherein a small dotted circle represents a cross section of a second specification instrument of the smallest size, and a large dotted circle represents a cross section of a second specification instrument of the largest size;
  • FIG. 12 is a perspective view of a lifting clamp seat according to an exemplary embodiment of the present disclosure.
  • FIG. 13 is a perspective view of a lifting clamp seat according to an exemplary embodiment of the present disclosure.
  • FIG. 14 is a perspective view of a lifting jaw seat supporting a first specification instrument according to an exemplary embodiment of the present disclosure, wherein the step portion of the first specification instrument is located outside the distal end of the lifting jaw seat;
  • FIG. 15 is a three-dimensional view of the step portion of the first specification instrument shown in FIG. 14 moving to the second guide section of the lifting clamp seat.
  • the above drawings include the following reference numerals: 100, lifting forceps seat; 110, first guide section; 111, first guide surface; 112, first center groove; 113, connecting end; 120, second guide section; 121, second guide surface; 1211, first-level guide surface; 1212, second-level guide surface; 130, third guide section; 131, third guide surface; 132, third center groove; 200, head end; 210, lighting window; 220, camera; 230, ultrasonic probe; 300, insertion part; 330, instrument channel; 400, operating part; 500, light guide hose; 600, light guide part; 700, cable; 800, ultrasonic connector; 910, first specification instrument; 911, step part; 920, second specification instrument.
  • a lifting forceps seat is provided.
  • the lifting forceps seat can be applied to any suitable device, including but not limited to an endoscope. Therefore, according to another aspect of the present disclosure, an endoscope is also provided.
  • an endoscope provided by an embodiment of the present disclosure includes an insertion portion 300, an operating portion 400, a light guide hose 500, a light guide portion 600, a cable 700 and an ultrasonic connector 800 connected in sequence.
  • the insertion portion 300 generally includes an instrument channel 330, one end of which extends to the operating portion 400, and the other end extends to the head portion 200 described later.
  • the medical device inserted in the instrument channel 330 also has one end located at the operating portion 400 and the other end extending at the head portion 200. The operator can operate the medical device on the operating portion 400 side and use the end of the medical device extending at the head portion 200 for auxiliary diagnosis or treatment.
  • the medical device may include a first specification device 910 as shown in Figures 3 and 4, and a second specification device 920 as shown in Figures 5 and 6, wherein the first specification device 910 may be a larger medical device, and the first specification device 910 may have a step portion 911, for example, the first specification device 910 may be an electrosurgical drainage stent, and the second specification device 920 may be a smaller medical device, for example, the second specification device 920 may be a puncture needle sheath, a guide wire, etc.
  • the insertion portion 300 may further include a head portion 200.
  • the head portion 200 may be equipped with components indispensable for endoscopic imaging, for example, the head portion 200 may be equipped with a lighting window 210, a camera 220, and an ultrasound probe 230, etc. Generally, the head portion 200 is hard.
  • the light guide 600 can be connected to an external light source device and indirectly connected to an external endoscope host through the light source device, or the light guide 600 can also be directly connected to both the light source device and the endoscope host.
  • the irradiation light generated by the light source device can be transmitted to the illumination window 210 of the head end 200 through the light guide medium passing through the light guide 600, the light guide hose 500, the operating part 400 and the insertion part 300, and then emitted to illuminate the subject; the camera 220 of the head end 200 collects the light returned from the subject, generates an optical image signal of the subject, and transmits it to the light guide 600, which is then transmitted to the light guide 600.
  • this application takes an ultrasonic endoscope as an example, but it can be understood that the solution provided in this application is also applicable to endoscopes that do not have an ultrasonic detection function, for example, it can be applied to duodenal endoscopes, etc.
  • the light guide 600 can also be connected to an ultrasonic connector 800 via a cable 700.
  • the ultrasonic signal collected by the ultrasonic probe 230 can be transmitted to the external ultrasonic host through the ultrasonic connector 800, and the ultrasonic host can process the ultrasonic signal to obtain an ultrasonic image of the subject.
  • a forceps lifting seat 100 may be provided on the head end portion 200.
  • the forceps lifting seat 100 of the embodiment of the present disclosure will be described in detail below in conjunction with the accompanying drawings.
  • the distal end mentioned below refers to the end of the endoscope that is closer to the subject when the operator uses the endoscope;
  • the proximal end mentioned below refers to the end of the endoscope that is closer to the operator when the operator uses the endoscope.
  • the lifting forceps seat 100 may include a rotating shaft end and a distal end.
  • the distal end of the lifting forceps seat 100 is close to the distal end of the head end 200, and the rotating shaft end of the lifting forceps seat 100 is close to the proximal end of the head end 200.
  • the rotating shaft end of the lifting forceps seat 100 may be provided with a connecting portion, and the connecting portion may be in the form of a rotating arm, so that the lifting forceps seat 100 can rotate relative to the head end 200 around the rotating shaft end to support the medical device passing through the instrument channel 330, and allow the medical device to extend at different angles.
  • the lifting forceps seat 100 can be switched between a laid-down state and a raised state by rotating around the rotating shaft end, wherein when the lifting forceps seat 100 is in the raised state, the angle of the medical device supported by it deviates from the longitudinal axis direction of the instrument channel 330 is large, and conversely, when the lifting forceps seat 100 is in the laid-down state, the angle of the medical device supported by it deviates from the longitudinal axis direction of the instrument channel 330 is small or does not deviate from the longitudinal axis direction of the instrument channel 330.
  • a first guide section 110 extending from the distal end toward the rotating shaft end may be provided on the front side of the lifting forceps seat 100.
  • the front side of the lifting forceps seat 100 may be the side of the lifting forceps seat 100 that is in direct contact with the medical device when the lifting forceps seat 100 supports the medical device.
  • the lifting forceps seat 100 may have a back side opposite to the front side, and the back side of the lifting forceps seat 100 may be the side of the bottom shell of the lifting forceps seat 100 that is closer to the head end 200.
  • the first guide section 110 may be configured to guide the medical device to a preset extension path or a preset retraction path.
  • the first guide section 110 may be in the form of a curved surface with an arc cross-section, or in the form of a "V"-shaped groove formed by connecting two planes, or in any other form having a guiding function.
  • the first guide section 110 may include two first guide surfaces 111, two The first guide surfaces 111 are connected by a first central groove 112.
  • the specific structure of the first guide section 110 will be described in detail later.
  • the preset extension path refers to the path that the medical device moves when it is extended through the first guide section 110
  • the preset retraction path refers to the path that the medical device moves on the first guide section 110 when the medical device is retracted.
  • the preset extension path or the preset retraction path may be different.
  • the preset extension path or the preset retraction path may also be different.
  • the central axis of the preset extension path may be coplanar with the central axis QQ of the ultrasonic probe 230 so that the medical device can appear within the ultrasonic detection range; and for a duodenal endoscope, refer to Figure 12, the preset extension path may be an arc with a certain curvature.
  • the first guide section 110 may have a connection end 113 away from the rotating shaft end, and the lifting clamp seat 100 may also be provided with a second guide section 120, which may extend obliquely from the connection end 113 toward the back of the lifting clamp seat 100 and away from the rotating shaft end. Similar to the first guide section 110, the second guide section 120 may be in any form with a guiding function, and the structure of the second guide section 120 will be described in detail later in conjunction with specific embodiments.
  • the first specification instruments 910 are usually larger in size, such as electrosurgical drainage stents, biopsy forceps, etc. During use, these medical instruments are prone to very obvious jamming during the withdrawal process. The inventors have found that the distal ends of these medical instruments usually have a step portion. During the withdrawal process, the step surface of the step portion facing the lifting forceps seat is prone to interference with the end surface of the distal end of the lifting forceps seat 100, thereby causing jamming.
  • Figures 14 and 15 both show an exemplary first specification instrument 910 with a step portion 911.
  • the step portion 911 extends out of the distal end of the lifting forceps seat 100, and Figure 15 shows that during the withdrawal process, the step portion 911 moves to the second guide section 120 of the lifting forceps seat 100.
  • the step portion 911 can, for example, be a structure similar to a mushroom head.
  • the XX direction shown in the figure can be understood as the withdrawal direction of the first specification instrument 910, that is, the withdrawal path of the first specification instrument 910 is generally along the XX direction.
  • the YY direction shown in the figure can be understood as a direction that spans the lifting forceps seat 100 and is perpendicular to the XX direction.
  • the ZZ direction shown in the figure is perpendicular to both the XX direction and the YY direction.
  • the force F1 that causes the first specification instrument 910 to retract is generally along the XX direction. Due to the second guide section 120 With respect to the first guide section 110 extending obliquely toward the back of the lifting forceps seat 100, when the step portion 911 of the first specification instrument 910 is supported by the second guide section 120, the support force F2 of the second guide section 120 on the step portion 911 of the first specification instrument 910 is within the plane determined by the XX direction and the ZZ direction and has an angle with both the XX direction and the ZZ direction. During the withdrawal process of the first specification instrument 910 with the step portion 911, the main part of the first specification instrument 910 is supported and guided by the first guide section 110 so that it withdraws along a preset withdrawal path.
  • the step portion 911 When its step portion 911 withdraws from the far end to the lifting forceps seat 100, the step portion 911 first contacts the second guide section 120, and the second guide section 120 provides support for the step portion 911, and the support force is perpendicular to the surface of the second guide section 120 that contacts the step portion 911.
  • the support force is marked as F2.
  • the supporting force F2 can be decomposed into a component force F21 in the XX direction opposite to the direction of F1, and a component force F22 in the ZZ direction.
  • the supporting force F2 is a constant.
  • the step portion 911 is easier to move to the second guide section 120, and the end face of the far end of the lifting clamp seat 100 is not easy to get stuck with the step portion 911. Therefore, during the withdrawal of the first specification instrument 910, the step portion 911 can move smoothly from the outer side of the distal end of the lifting clamp seat 100 to the first guide section 110, as shown in FIG15. In addition, after the step portion 911 moves to the second guide section 120, the component force F22 can act on the step portion 911 of the first specification instrument 910 in the ZZ direction.
  • the effect of the support of the step portion 911 by the second guide section 120 is that the step portion 911 of the first specification instrument 910 at least has a tendency to move away from the lifting clamp seat 100.
  • the second guide section 120 can be configured to support the step portion 911 of the first specification instrument 910 located on the withdrawal path, so that the step portion 911 moves in a direction away from the lifting clamp seat 100.
  • the step portion 911 can move smoothly to the second guide section 120 without causing any obvious jamming, and the step portion 911 can move smoothly to the first guide section 110 after contacting the second guide section 120 .
  • the second guide section 120 supports the step portion 911, so that the step portion 911 moves in a direction away from the lifting clamp seat 100, thereby preventing the step portion 911 from moving toward the lifting clamp seat 100.
  • the step surface interferes with the end surface of the distal end of the lifting forceps seat 100, thereby avoiding the first specification instrument 910 with the step portion 911 from getting stuck during the withdrawal process.
  • the first specification instrument 910 can be a medical device of a larger size.
  • the second guide section 120 supports and guides the mushroom head end of the electrosurgical excision and drainage stent, so that the mushroom head end will not get stuck during withdrawal; for example, when the first specification instrument 910 is a biopsy forceps, the second guide section 120 supports and guides the step portion of the biopsy forceps, so that the step portion will not get stuck during withdrawal. Therefore, such a lifting forceps seat 100 can significantly reduce the sense of jamming of the first specification instrument 910 during the withdrawal process, thereby improving the user's clinical experience.
  • the first guide section 110 may include two first guide surfaces 111, and the two first guide surfaces 111 may be symmetrically arranged about the length axis of the lifting clamp seat 100, and an angle greater than 90° and less than 180° may be formed between the two first guide surfaces 111.
  • the two first guide surfaces 111 may both be in the form of planes or in the form of curved surfaces.
  • the two first guide surfaces 111 may be the same or different.
  • the two first guide surfaces 111 are two inclined planes.
  • the two first guide surfaces 111 may not directly intersect. In an embodiment not shown, the two first guide surfaces 111 may directly intersect so that the first guide section 110 has a "V"-shaped cross-section.
  • the lifting forceps seat 100 in which the angle between the two first guide surfaces 111 is greater than 90° and less than 180° can adapt to medical devices of more sizes and better keep the medical devices on a predetermined extension path or retraction path.
  • the symmetry of the two first guide surfaces 111 can make the overall structure simpler and easier to produce and process.
  • the first guide section 110 includes a first central groove 112, and the first central groove 112 can be formed between the two first guide surfaces 111.
  • the first central groove 112 can be a plane connected between the two first guide surfaces 111, or a curved surface that is concave toward the back of the lifting forceps seat 100, or any other suitable surface. The provision of the first central groove 112 can provide better support for the medical device on the first guide section 110.
  • the cross section of the first central groove 112 may be in the shape of an arc.
  • Such a first central groove 112 may be adapted to medical devices with a smaller circular cross section to provide better support and guidance for such medical devices.
  • the second specification device 920 may include a puncture needle sheath with a circular cross section, and the cross-sectional diameter of the puncture needle sheath is usually smaller, and the first central groove 112 in the form of an arc cross section may provide better support and guidance for the second specification device 920.
  • the second guide section 120 may include two second guide surfaces 121, and the two second guide surfaces 121 may be symmetrically arranged about the length axis of the lifting clamp seat 100.
  • the two second guide surfaces 121 may be curved surfaces.
  • the two second guide surfaces 121 may also be flat surfaces. The symmetry of the two second guide surfaces 121 may make the overall structure simpler and easier to process.
  • the two second guide surfaces 121 may intersect directly, and in this case, the second guide section 120 may have a "V"-shaped cross section.
  • the two second guide surfaces 121 may not intersect directly, and a third guide section 130 may be provided between the two second guide surfaces 121.
  • the third guide section 130 will be described in detail below in conjunction with the accompanying drawings.
  • a third guide section 130 is further provided on the lifting clamp seat 100, and the third guide section 130 extends obliquely from the connecting end 113 toward the back of the lifting clamp seat 100 and away from the rotating shaft end.
  • the third guide section 130 is located in the middle area of the second guide section 120, and the middle area refers to the middle area of the second guide section 120 in a direction perpendicular to the longitudinal axis direction of the lifting clamp seat 100 (for example, the width direction of the lifting clamp seat 100).
  • the width direction of the lifting clamp seat 100 refers to the horizontal direction shown in the figure.
  • the third guide section 130 is configured to guide the second specification instrument 920 to a preset extension path.
  • the second guide section 120 can also be configured to guide the second specification instrument 920 to move from both sides of the lifting clamp seat 100 to the middle area of the second guide section 120 and then enter the third guide section 130.
  • the preset extension path refers to the path that the second-specification instrument 920 moves when it is extended through the third guide section 130.
  • the second-specification instrument 920 is usually smaller in size.
  • the second-specification instrument 920 can be a puncture needle sheath.
  • the lifting forceps seat 100 can be placed in a laid-down state, and the second-specification instrument 920 is withdrawn along the preset withdrawal path under the guidance of the first guide section 110.
  • the lifting forceps seat 100 can be in a lifted state with the distal end lifted, see Figure 6 for details.
  • the second-specification instrument 920 usually has a certain rigidity, so the second-specification instrument 920 is more inclined to contact the distal end of the lifted forceps lifting seat 100, that is, to contact the third guide section 130, and to extend through the preset extension path under the guidance of the third guide section 130.
  • the provision of the third guide section 130 can make it possible for the forceps lifting seat 100 to provide better support and guidance for the second-specification instrument 920 when the medical device passing through the instrument channel 330 is a second-specification instrument 920.
  • the size of the third guide section 130 is also relatively small, so it can provide better support and lateral limiting effects for the smaller second-specification instrument 92.
  • the second-specification instrument 920 is often in an extended state during use, and the third guide section 130 is preferably in an extended state. Segment 130 can prevent the second specification instrument 920 from shaking during use.
  • the second guide section 120 may include two second guide surfaces 121, and the third guide section 130 may be formed between the two second guide surfaces 121.
  • the included angle ⁇ between the second guide surface 121 and the side wall of the third guide section 130 may be not less than 135°.
  • the included angle between the second guide surface 121 and the side wall of the third guide section 130 forms an obtuse angle, which is beneficial to the guidance of large-sized instruments, such as the first-specification instrument 910, when withdrawing.
  • the third guide section 130 may include two third guide surfaces 131, and the two third guide surfaces 131 may be symmetrically arranged about the length axis of the lifting clamp seat 100, and the angle between the two third guide surfaces 131 may be greater than 90° and less than 180°. Setting the angle between the two third guide surfaces 131 to an obtuse angle can facilitate the second specification instrument 920 to enter and remain in the space surrounded by the third guide section 130, for example, to keep the second specification instrument 920 in the middle area of the third guide section 130. Similar to the middle area of the second guide section 120, the middle area of the third guide section 130 also refers to the middle area of the third guide section 130 in the width direction of the lifting clamp seat 100.
  • the third guide section 130 has two third guide surfaces 131, and the second specification instrument 920, under the guidance of the two third guide surfaces 131, has a tendency to remain in the middle area of the third guide section 130, whether it is withdrawn or extended. That is to say, if the second specification instrument 920 deviates from the extension direction of the middle area of the third guide section 130 during use, after the external force is removed, the second specification instrument 920 will move toward the middle area of the third guide section 130 under the guidance of the third guide surface 131.
  • the extension direction of the middle area of the third guide section 130 may be parallel to the length axis of the lifting clamp seat 100, may have an angle with the length axis of the lifting clamp seat 100, or may be curved relative to the length axis of the lifting clamp seat 100.
  • the third guide surface 131 is in the form of two symmetrical planes, and the middle area of the third guide section 130 refers to the area between the two symmetrical planes.
  • the two third guide surfaces 131 may both be in the form of planes or in the form of curved surfaces.
  • the two third guide surfaces 131 may be the same or different.
  • the two third guide surfaces 131 are two inclined planes.
  • the two third guide surfaces 131 may not directly intersect. In an embodiment not shown, the two third guide surfaces 131 may directly intersect, in which case the third guide section 130 has a "V"-shaped cross-section.
  • the lifting forceps seat 100 in which the angle between the two third guide surfaces 131 is greater than 90° and less than 180° can adapt to more sizes of second specification instruments 920 and better integrate the second
  • the standard device 920 is kept on the predetermined extension path, and the symmetry of the two third guide surfaces 131 can make the overall structure simpler and easier to produce and process.
  • the first guide section 110 may include two first guide surfaces 111, and the two first guide surfaces 111 may be symmetrically arranged about the length axis of the lifting clamp seat 100.
  • the third guide section 130 may include two third guide surfaces 131.
  • the angle between the two first guide surfaces 111 may be smaller than the angle between the two third guide surfaces 131. If the angle between the two third guide surfaces 131 is smaller than the angle between the two first guide surfaces 111, a step surface may be formed at the intersection of the two third guide surfaces 131 and the two first guide surfaces 111 toward the end of the rotating shaft of the lifting clamp seat 100.
  • the step surface may prevent the second specification instrument 920 from extending from between the two first guide surfaces 111 to between the two third guide surfaces 131, causing the second specification instrument 920 to get stuck, or even causing the second specification instrument 920 to be unable to enter the third guide section 130. Therefore, the angle between the two first guide surfaces 111 is smaller than the angle between the two third guide surfaces 131, which can ensure that the second-specification instrument 920 that continues to move toward the distal end on the first guide section 110 can smoothly enter the third guide section 130 from the first guide section 110, and will not get stuck at the junction of the first guide section 110 and the third guide section 130 due to the change in the boundary size.
  • the lifting forceps seat 100 can be placed in a lying state.
  • the two third guide surfaces 131 have almost no effect, and the second-specification instrument 920 is supported on the first guide section 110, so the withdrawal process of the second-specification instrument 920 will also be smooth.
  • the third guide section 130 may be provided with a third central groove 132, and the third central groove 132 may be formed between the two third guide surfaces 131.
  • the third central groove 132 may be a plane connected between the two third guide surfaces 131, or a curved surface recessed away from the third guide surface 131, or any other suitable surface. The provision of the third central groove 132 may provide better support for the second specification instrument 920 in the middle area of the third guide section 130.
  • the cross section of the third central groove 132 may be in the shape of an arc.
  • Such a third central groove 132 may be adapted to medical devices with a smaller circular cross section, so as to provide better support and guidance for such medical devices.
  • the third center groove 132 with an arc-shaped cross section may have an arc diameter, and the arc diameter may be no greater than 19G.
  • G represents the outer diameter unit of the puncture needle sheath, and the values of G corresponding to different puncture needle sheaths converted into the international system of units may be different. See Figure 11, in which the small circle represents the smallest size of the puncture needle sheath cross section on the market, and the large circle represents the largest size of the puncture needle sheath on the market. Cross section. At present, the diameter of the largest puncture needle sheath on the market is 19G, and the diameter of the smallest puncture needle sheath on the market is 25G.
  • the puncture needle sheath with a diameter range of 19G to 25G passes through the instrument channel 330 and reaches the lifting forceps seat 100, it will be located in the third guide section 130 and supported by the third guide surface 131.
  • the puncture needle sheath located in the third guide section 130 will have two support points, and the two support points are respectively located on the two third guide surfaces 131.
  • the smaller the diameter of the puncture needle sheath, the lower the height of the two support points, and the larger the diameter of the puncture needle sheath the higher the height of the two support points.
  • the two support points can provide good support and lateral limitation for the puncture needle sheath, avoiding the shaking of the puncture needle sheath during use.
  • a lifting forceps seat 100 supports the largest size of puncture needle sheath on the market, that is, when supporting a puncture needle sheath with a diameter of 19G, the supporting point is exactly located at the intersection of the second guide surface 121 and the third guide surface 131.
  • 19G to 25G can be a value between 1.1mm and 0.5mm.
  • Such a lifting forceps seat 100 can be adapted to various types of puncture needle sheaths, and has a wider range of applications.
  • the second specification instrument 920 is taken as an example of a puncture needle sheath.
  • the puncture needle sheath is extended to the outside of the head end 200, it is actually the distal end of the lifting clamp seat 100 and the top of the instrument channel 330 that provide support and limit for the puncture needle sheath.
  • the distal end of the lifting clamp seat 100 is provided with a third guide section 130, and the third center groove 132 is further provided on the third guide section 130, it is the third center groove 132 and the top of the instrument channel 330 that provide support and limit for the extended puncture needle sheath.
  • the third center groove 132 can be similarly understood as being formed by digging out a part of the distal end of the lifting clamp seat 100, the height of the supporting part is reduced, so at this time the height of the distal end of the puncture needle sheath will decrease, that is, the distal end of the puncture needle sheath can be closer to the distal end of the head end 200, that is, the distal end of the puncture needle sheath can be closer to the probe position.
  • the optical collection area of the lighting window 210 and the camera 220 is limited, and the second specification instrument 920 closer to the probe position can reduce the blind spot during operation and enhance the effect of auxiliary treatment or diagnosis.
  • the angle ⁇ between the central axis of the first central groove 112 (LL line in the figure) and the central axis of the third central groove 132 (MM line in the figure) is greater than or equal to 10° and less than or equal to 45°.
  • the angle ⁇ is too large, the distal end of the extended second specification instrument 920 is too close to the probe position, which may affect the probe detection or damage the probe; when the angle ⁇ is too small, the effect of reducing the blind area of the visual field during operation is not obvious. After repeated tests and debugging, it is shown that it is more appropriate to set the angle ⁇ to 10° to 45°.
  • Such a design not only makes the distal end of the medical device in the optical collection area of the lighting window 210 and the camera 220, reducing the blind area of the visual field when operating the medical device, but also avoids the interference or even damage of the distal end of the medical device to the probe.
  • the angle ⁇ may be greater than or equal to 30° and less than or equal to 60°.
  • the angle ⁇ may be 30°, 40°, 42°, 50°, 53°, 55° or 60°. If the angle ⁇ is less than 30°, the second guide section 120 is tilted too much from the connection end 113 toward the back of the lifting clamp seat 100. It can be understood that the distal end of the lifting clamp seat 100 still has a certain thickness. When the step portion 911 is withdrawn to the lifting clamp seat 100, it may not be able to first contact the second guide section 120.
  • the second guide section 120 cannot quickly form support for the step portion 911, so that when the first specification instrument 910 is withdrawn, there will still be an obvious sense of jamming; and if the angle ⁇ is greater than 60°, the second guide section 120 is tilted too much from the connection end 113 toward the back of the lifting clamp seat 100. It can be understood that the second guide section 120 forms the distal end of the lifting clamp seat 100.
  • the step portion 911 will produce obvious jamming at the second guide section 120, and the component force F21 of the second guide section 120 supporting the first specification instrument 910 in the X-X direction will be too large, resulting in difficulty in withdrawing the first specification instrument 910.
  • the third guide segment 130 supports the second-specification instrument 920 of the largest size on the market
  • the tangent point where the cross section of the puncture needle sheath is tangent to the third guide segment 130 can just rest on the third guide segment 130, for example, the tangent point can fall at P as shown in Figures 8, 9 and 10.
  • the tangent point P is also the intersection point of the first guide segment 110 and the second guide segment 120, or in other words, the tangent point P is also the dividing point between the first guide segment 110 and the second guide segment 120.
  • the connecting end 113 of the first guide segment 110 also passes through the tangent point P.
  • the tangent point P can be determined by the puncture needle sheath with the largest diameter on the market.
  • the structure of the second guide surface 121 can be determined.
  • the predetermined diameter can be determined based on the second specification instrument 920 with the largest size on the market.
  • any two connected guide surfaces for example, between the first guide surface 111 and the second guide surface 121, between the second guide surface 121 and the third guide surface 131
  • the transition between the first guide surface 111 and the third guide surface 131 ) and between any two connected center grooves can be achieved through chamfering or curved surface transition.
  • the second guide section 120 may include a multi-stage guide surface.
  • the second guide section 120 may include a first-stage guide surface 1211 and a second-stage guide surface 1212.
  • the first-stage guide surface 1211 and the second-stage guide surface 1212 may be arranged along the longitudinal axis direction of the lifting clamp seat 100.
  • the first-stage guide surface 1211 is farther from the rotation axis end of the lifting clamp seat 100 than the second-stage guide surface 1212.
  • the first-stage guide surface 1211 may be more inclined toward the back of the lifting clamp seat 100.
  • the multi-stage guide surface may contact the step portion 911 in sequence and support the step portion 911 in sequence, so that the first-standard instrument 910 will not get stuck when withdrawing on the withdrawal path, and the withdrawal process is smoother.
  • area-relative terms such as “above”, “above”, “on the upper surface of”, “above”, etc. may be used here to describe the regional positional relationship between one or more components or features shown in the figure and other components or features. It should be understood that area-relative terms include not only the orientation of the components as described in the figure, but also different orientations in use or operation. For example, if the components in the accompanying drawings are inverted as a whole, the components “above other components or features” or “above other components or features” will include the situation where the components are “below other components or structures" or “below other components or structures”. Therefore, the exemplary term “above” may include both “above” and "below”. In addition, these components or features may also be positioned at other different angles (e.g., rotated 90 degrees or other angles), and this article is intended to include all of these situations.

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Abstract

一种抬钳座（100），包括转动轴端和远端，抬钳座（100）的正面上设置有从远端朝转动轴端延伸的第一导向段（110），第一导向段（110）具有远离转动轴端的连接端（113），第一导向段（110）构造成将医疗器械引导到预设的伸出路径或者预设的回撤路径上；抬钳座（100）上还设置有第二导向段（120），第二导向段（120）从连接端（113）朝向抬钳座（100）的背面且远离转动轴端倾斜延伸；其中，第二导向段（120）构造成对位于回撤路径上的第一规格器械（910）的台阶部（911）形成支撑，使台阶部（911）朝向远离抬钳座（100）的方向移动。这种抬钳座（100）在穿过器械通道（330）的医疗器械为具有台阶部（911）的第一规格器械（910）时，第一规格器械（910）的回撤过程不会发生卡顿。

Description

抬钳座和内窥镜 技术领域
本公开涉及医疗技术领域，具体地，涉及一种抬钳座和内窥镜。
背景技术
内窥成像作为一种无创成像方法，可有效延长人类视线，被广泛应用于消化道、心脑血管系统、泌尿系统以及呼吸道系统等多个领域的影像诊断和图像引导治疗，极大地促进了疾病的检查精度。
内窥镜进入人体的部分为细长的插入部，插入部中通常设置有器械通道，在用内窥镜进行诊断或治疗时，可以使医疗器械穿过器械通道到达内窥镜的远端来辅助诊断或治疗。现有的内窥镜大多设置有抬钳座来调整医疗器械伸出器械通道的方向。
然而现有的抬钳座在使用中，在诸如电切引流支架、活检钳等较大尺寸的医疗器械回撤过程中，容易产生非常明显的卡顿，用户体验不佳。
发明内容
为了至少部分地解决现有技术中存在的问题，根据本公开的一个方面，提供一种抬钳座。抬钳座包括转动轴端和远端，抬钳座的正面上设置有从远端朝转动轴端延伸的第一导向段，第一导向段具有远离转动轴端的连接端，第一导向段构造成将医疗器械引导到预设的伸出路径或者预设的回撤路径上；抬钳座上还设置有第二导向段，第二导向段从连接端朝向抬钳座的背面且远离转动轴端倾斜延伸；其中，第二导向段构造成对位于回撤路径上的第一规格器械的台阶部形成支撑，使台阶部朝向远离抬钳座的方向移动。
本公开提供的抬钳座，在具有台阶部的第一规格器械回撤的过程中， 通过第二导向段对该台阶部形成支撑，使台阶部朝向远离抬钳座的方向移动，可以避免台阶部中朝向抬钳座的台阶面与抬钳座的远端的端面产生干涉，从而避免具有台阶部的第一规格器械的回撤过程发生卡顿。第一规格器械可以是较大尺寸的医疗器械，例如第一规格器械是电切引流支架时，第二导向段对电切引流支架的蘑菇头头端有支撑和导向作用，由此蘑菇头头端在回撤时不会发生卡顿；例如第一规格器械是活检钳时，第二导向段对活检钳的台阶部有支撑和导向作用，由此台阶部在回撤时也不会发生卡顿。因此，这样的抬钳座可以显著减弱第一规格器械在回撤过程中的卡顿感，提升用户的临床体验。
示例性地，第一导向段包括两个第一引导面，两个第一引导面关于抬钳座的长度轴对称设置，且两个第一引导面之间形成大于90°且小于180°的夹角。
示例性地，第一导向段还包括第一中心槽，第一中心槽形成在两个第一引导面之间。
示例性地，第一中心槽的截面为圆弧形。
示例性地，第二导向段包括两个第二引导面，两个第二引导面关于抬钳座的长度轴对称设置。
示例性地，第一引导面朝向抬钳座的远端的延伸面与第二引导面之间的夹角大于或等于30°且小于或等于60°。
示例性地，抬钳座上还设置有第三导向段，第三导向段从连接端朝向抬钳座的背面且远离转动轴端倾斜延伸，第三导向段位于第二导向段的中部区域，第三导向段构造成将第二规格器械引导到预设的伸出路径上。
示例性地，第二导向段包括两个第二引导面，第三导向段形成在两个第二引导面之间。
示例性地，第二引导面与第三导向段的侧壁之间的夹角不小于135°。
示例性地，第三导向段包括两个第三引导面，两个第三引导面关于抬钳座的长度轴对称设置，且两个第三引导面之间形成大于90°且小于180°的夹角。
示例性地，第一导向段包括两个第一引导面，两个第一引导面关于抬 钳座的长度轴对称设置，两个第一引导面之间的夹角小于两个第三引导面之间的夹角。
示例性地，第三导向段上设置有第三中心槽，第三中心槽形成在两个第三引导面之间。
示例性地，第一导向段包括第一中心槽和两个第一引导面，两个第一引导面关于抬钳座的长度轴对称设置，第一中心槽形成在两个第一引导面之间，第一中心槽的中心轴线与第三中心槽的中心轴线的夹角大于或等于10°且小于或等于45°。
示例性地，第三中心槽的截面为圆弧形。
示例性地，第三中心槽具有圆弧直径，圆弧直径不大于19G。
示例性地，第三导向段上具有与具有预定直径大小的第二规格器械相切的切点，第一导向段和第二导向段相交于切点。
示例性地，第二导向段包括多级引导面，第一规格器械在回撤路径上回撤时，多级引导面依次与台阶部接触。
根据本公开的另一个方面，提供一种内窥镜，内窥镜包括头端部，头端部上设置有如上文所述中的任一种抬钳座。
示例性地，头端部包括超声探头，超声探头的中轴线与伸出路径的中心线共面。
在发明内容中引入了一系列简化形式的概念，这将在具体实施方式部分中进一步详细说明。本发明内容部分并不意味着要试图限定出所要求保护的技术方案的关键特征和必要技术特征，更不意味着试图确定所要求保护的技术方案的保护范围。
以下结合附图，详细说明本公开的优点和特征。
附图说明
本公开的下列附图在此作为本公开的一部分用于理解本公开。附图中示出了本公开的实施方式及其描述，用来解释本公开的原理。在附图中，
图1为根据本公开的一个示例性实施例的内窥镜的示意图；
图2为根据本公开的一个示例性实施例的头端部的立体图；
图3为根据本公开的一个示例性实施例的头端部的立体图，其中，有第一规格器械穿设于器械通道；
图4为图3所示的头端部的局部剖视图；
图5为根据本公开的一个示例性实施例的头端部的立体图，其中，有第二规格器械穿设于器械通道；
图6为图5所示的头端部的局部剖视图；
图7为根据本公开的一个示例性实施例的抬钳座的立体图；
图8为根据本公开的一个示例性实施例的抬钳座的立体图；
图9为图8所示的抬钳座在另一个方向上的立体图；
图10为图8所示的抬钳座的剖视图；
图11为根据本公开的一个示例性实施例的抬钳座的截面的局部放大图，其中，虚线小圈代表最小尺寸的第二规格器械的截面，虚线大圈代表最大尺寸的第二规格器械的截面；
图12为根据本公开的一个示例性实施例的抬钳座的立体图；
图13为根据本公开的一个示例性实施例的抬钳座的立体图；
图14为根据本公开一个示例性实施例的抬钳座支撑有第一规格器械的立体图，其中，第一规格器械的台阶部位于抬钳座的远端之外；
图15为图14中示出的第一规格器械的台阶部移动至抬钳座的第二导向段上的立体图。
其中，上述附图包括以下附图标记：
100、抬钳座；110、第一导向段；111、第一引导面；112、第一中心
槽；113、连接端；120、第二导向段；121、第二引导面；1211、第一级引导面；1212、第二级引导面；130、第三导向段；131、第三引导面；132、第三中心槽；200、头端部；210、照明窗；220、摄像头；230、超声探头；300、插入部；330、器械通道；400、操作部；500、导光软管；600、导光部；700、电缆线；800、超声连接器；910、第一规格器械；911、台阶部；920、第二规格器械。
具体实施方式
在下文的描述中，提供了大量的细节以便能够彻底地理解本公开。然而，本领域技术人员可以了解，如下描述仅示例性地示出了本公开的优选实施例，本公开可以无需一个或多个这样的细节而得以实施。此外，为了避免与本公开发生混淆，对于本领域公知的一些技术特征未进行详细描述。
根据本公开的一个方面，提供了一种抬钳座。抬钳座可以应用至任意合适的装置，包括但不限于内窥镜。因此，根据本公开的另一个方面，还提供了一种内窥镜。具体地，参见图1，本公开实施例提供的一种内窥镜包括依次连接的插入部300、操作部400、导光软管500、导光部600、电缆线700和超声连接器800。
插入部300通常包括器械通道330，器械通道330一端延伸至操作部400，另一端延伸至后述的头端部200。这样，穿设于器械通道330的医疗器械同样是一端位于操作部400，另一端在头端部200处伸出，操作者可以在操作部400侧操作医疗器械，并利用医疗器械上在头端部200处伸出的一端进行辅助诊断或治疗。医疗器械可以包括如图3和图4所示的第一规格器械910，以及如图5和图6所示的第二规格器械920，其中，第一规格器械910可以是尺寸较大的医疗器械，并且第一规格器械910可以是具有台阶部911的，例如第一规格器械910可以是电切引流支架，第二规格器械920可以是尺寸较小的医疗器械，例如第二规格器械920可以是穿刺针鞘管、导丝等。
插入部300还可以包括头端部200。其中，头端部200可以安装有内窥镜成像所不可或缺的组件，例如，头端部200可以安装有照明窗210、摄像头220和超声探头230等。通常，头端部200是硬质的。
导光部600可以连接至外部光源装置，并通过光源装置与外部内镜主机间接地连接，或者，导光部600也可以直接与光源装置和内镜主机两者连接。光源装置产生的照射光可以经穿设在导光部600、导光软管500、操作部400以及插入部300内的导光介质，传导到头端部200的照明窗210后出射，以照射被检体；头端部200的摄像头220采集自被检体返回的光线后，生成被检体的光学图像信号，并传输至导光部600，由导光部600 进一步传输至外部内镜主机进行图像处理，由此得到被检体的光学图像。为便于描述，本申请以超声内窥镜为例进行介绍，但是可以理解的是，本申请所提供的方案同样适用于不具备超声探测功能的内窥镜，例如可以应用于十二指肠内窥镜等。对于超声内窥镜，导光部600还可以通过电缆线700连接至超声连接器800。超声探头230采集到的超声信号可以通过超声连接器800传递至外部超声主机，超声主机可以对超声信号进行处理，由此得到被检体的超声图像。
如图2至图6所示，头端部200上可以设置有抬钳座100，下面将结合附图对本公开的实施例的抬钳座100进行详细描述。为方便描述，下文提到的远端，指的是操作者使用内窥镜时，内窥镜上更靠近被检体的一端；下文提到的近端，指的是操作者使用内窥镜时，内窥镜上更靠近操作者的一端。
抬钳座100可以包括转动轴端和远端。抬钳座100的远端靠近头端部200的远端，抬钳座100的转动轴端靠近头端部200的近端。抬钳座100的转动轴端可以设置有连接部，连接部可以是转臂的形式，从而抬钳座100可以绕转动轴端相对头端部200旋转，以支撑穿过器械通道330的医疗器械，并使医疗器械可以以不同角度伸出。示例性地，抬钳座100绕转动轴端转动可以使其在放倒状态和抬起状态之间切换，其中，抬钳座100处于抬起状态时，使其支撑的医疗器械偏离器械通道330的长度轴方向的角度较大，相反地，抬钳座100处于放倒状态时，使其支撑的医疗器械偏离器械通道330的长度轴方向的角度较小或者相对于器械通道330的长度轴方向不偏离。
参见图7、图8和图9，抬钳座100的正面上可以设置有从远端朝转动轴端延伸的第一导向段110。抬钳座100的正面可以是抬钳座100在支撑医疗器械时，抬钳座100上与医疗器械直接接触的一面。与之相应地，抬钳座100可以具有与正面相对的背面，抬钳座100的背面可以是抬钳座100上更靠近头端部200的底壳的一面。第一导向段110可以构造成将医疗器械引导到预设的伸出路径或者预设的回撤路径上。第一导向段110可以是截面为弧形的曲面形式，也可以是两个平面相连接所形成的类似“V”字型槽的形式，还可以是具有导向功能的其他任意形式。以图7所示的第一导向段110为例，第一导向段110可以包括两个第一引导面111，两个 第一引导面111之间通过第一中心槽112连接。后文还将对第一导向段110的具体结构进行详细描述。预设的伸出路径指的是医疗器械经第一导向段110伸出时移动的路径，预设的回撤路径指的是回撤医疗器械时，医疗器械在第一导向段110上移动的路径。针对不同类型的医疗器械，预设的伸出路径或者预设的回撤路径可以不同。针对不同类型的内窥镜，预设的伸出路径或者预设的回撤路径也可以不同。例如对于超声内窥镜，预设的伸出路径的中轴线可以与超声探头230的中轴线Q-Q共面，以使医疗器械可出现在超声探测范围内；而对于十二指肠内窥镜，参阅图12，预设的伸出路径可以是具有一定弧度的弧线。
参见图7、图8和图9，第一导向段110可以具有远离转动轴端的连接端113，抬钳座100上还可以设置有第二导向段120，第二导向段120可以从连接端113朝向抬钳座100的背面且远离转动轴端倾斜延伸。与第一导向段110类似，第二导向段120可以是具有导向功能的任意形式的，后文还将结合具体实施例对第二导向段120的结构进行详细描述。
上文中提到，第一规格器械910通常尺寸较大，诸如电切引流支架、活检钳等。在使用过程中，这些医疗器械在回撤过程中，容易产生非常明显的卡顿。发明人研究发现：这些医疗器械的远端通常具有台阶部，回撤过程中，该台阶部的朝向抬钳座的台阶面容易与抬钳座100的远端的端面之间形成干涉，由此产生卡顿。图14和图15均示出了一种示例性的具有台阶部911的第一规格器械910。在图14中，台阶部911伸出到抬钳座100的远端之外，图15示出了在回撤过程中，台阶部911移动到抬钳座100的第二导向段120上。该台阶部911例如可以为类似蘑菇头的结构。对于常规抬钳座来说，具有台阶部911的第一规格器械910在回撤时，台阶部911与抬钳座的远端接触时，会有明显的卡顿感，也就使得这样的第一规格器械910在回撤过程中具有明显的卡顿感。以具有台阶部911的第一规格器械910为电切引流支架为例，对具有台阶部911的第一规格器械910在本申请提供的抬钳座100上回撤的过程进行说明。图示的X-X方向可以理解为第一规格器械910的回撤方向，亦即第一规格器械910的回撤路径大体上沿着X-X方向。图示的Y-Y方向可以理解为横跨抬钳座100且垂直于X-X方向的方向。图示的Z-Z方向与X-X方向和Y-Y方向均垂直。使第一规格器械910回撤的力F1大体上沿着X-X方向。由于第二导向段120 相对于第一导向段110朝向抬钳座100的背面倾斜延伸，在第一规格器械910的台阶部911由第二导向段120支撑的情况下，第二导向段120对第一规格器械910的台阶部911的支撑力F2在X-X方向与Z-Z方向确定的平面内且与X-X方向和Z-Z方向均存在夹角。具有台阶部911的第一规格器械910在回撤过程中，该第一规格器械910的主体部分由第一导向段110支撑和引导，使其沿着预设的回撤路径回撤。当其台阶部911自远端回撤至抬钳座100时，台阶部911首先与第二导向段120接触，第二导向段120给台阶部911提供支撑，支撑力垂直于第二导向段120的与台阶部911接触的面，如图所示支撑力被标记为F2。支撑力F2可以拆解为X-X方向上与F1方向相反的分力F21、以及Z-Z方向上的分力F22。对于相同的器械和相同的使用条件下，支撑力F2是定值。支撑力F2在X-X方向上的分力F21越小，使第一规格器械910回撤的力F1就越小，第一规格器械910越容易回撤。而且，通过使第二导向段120相对于第一导向段110朝向抬钳座100的背面倾斜，不会在抬钳座100的远端形成明显的棱角，避免在第一规格器械910的回撤过程中与台阶部911产生干涉。也就是说，由于第二导向段120相对于第一导向段110朝向抬钳座100的背面倾斜延伸，台阶部911更容易移动到第二导向段120，抬钳座100的远端的端面不容易卡住台阶部911。于是，第一规格器械910在回撤过程中，台阶部911可以从抬钳座100的远端的外侧顺滑地移动到第一导向段110上，见图15。此外，在台阶部911移动到第二导向段120上之后，在Z-Z方向上，分力F22可以对第一规格器械910的台阶部911产生作用。因此，在第一规格器械910回撤的过程中，第二导向段120对台阶部911的支撑所表现的效果为使得第一规格器械910的台阶部911至少具有远离抬钳座100的倾向。也就是说，第二导向段120可以构造成对位于回撤路径上的第一规格器械910的台阶部911形成支撑，使台阶部911朝向远离抬钳座100的方向移动。综上，在第一规格器械910的回撤过程中，台阶部911可以顺滑地移动到第二导向段120上，不会产生明显的卡顿感，并且台阶部911接触第二导向段120后可以顺滑地移动至第一导向段110上。
本公开提供的抬钳座，在具有台阶部911的第一规格器械910回撤的过程中，通过第二导向段120对台阶部911形成支撑，使台阶部911朝向远离抬钳座100的方向移动，可以避免台阶部911中朝向抬钳座100的台 阶面与抬钳座100的远端的端面产生干涉，从而避免具有台阶部911的第一规格器械910的回撤过程发生卡顿。第一规格器械910可以是较大尺寸的医疗器械，例如第一规格器械910是电切引流支架时，第二导向段120对电切引流支架的蘑菇头头端有支撑和导向作用，由此蘑菇头头端在回撤时不会发生卡顿；例如第一规格器械910是活检钳时，第二导向段120对活检钳的台阶部有支撑和导向作用，由此台阶部在回撤时也不会发生卡顿。因此，这样的抬钳座100可以显著减弱第一规格器械910在回撤过程中的卡顿感，提升用户的临床体验。
在本公开的一个示例性实施例中，参见图8和图9，第一导向段110可以包括两个第一引导面111，两个第一引导面111可以关于抬钳座100的长度轴对称设置，且两个第一引导面111之间可以形成大于90°且小于180°的夹角。两个第一引导面111可以均是平面的形式，也可以均是曲面的形式。两个第一引导面111可以是相同的也可以是不同的。图示实施例中，两个第一引导面111为两个倾斜的平面。两个第一引导面111可以不直接相交。在未示出的实施例中，两个第一引导面111可以是直接相交的，以使第一导向段110具有“V”型截面。两个第一引导面111之间的夹角大于90°且小于180°的这种抬钳座100，可以适配更多尺寸的医疗器械以及更好地将医疗器械保持在预定的伸出路径或者回撤路径上，而且两个第一引导面111对称可以使整体结构更加简单，易于生产加工成型。
在两个第一引导面111不直接相交的情况下，第一导向段110包括第一中心槽112，第一中心槽112可以形成在两个第一引导面111之间。第一中心槽112可以为连接在两个第一引导面111之间的平面，也可以为朝向抬钳座100的背面凹陷的曲面，或者还可以为其他任意合适的面。第一中心槽112的设置可以为处于第一导向段110上的医疗器械提供更好的支撑。
进一步地，第一中心槽112的截面可以为圆弧形。这样的第一中心槽112可以适配于具有较小尺寸的圆形截面的医疗器械，以对这样的医疗器械提供更好的支撑和导向作用。例如，参见图5和图6，第二规格器械920可以包括具有圆形截面的穿刺针鞘管，而且穿刺针鞘管的截面直径通常较小，圆弧截面形式的第一中心槽112可以对第二规格器械920提供更好的支撑和导向作用。
第二导向段120可以包括两个第二引导面121，两个第二引导面121可以关于抬钳座100的长度轴对称设置。参见图7，两个第二引导面121可以是曲面。参见图8和图9，两个第二引导面121也可以是平面。两个第二引导面121对称可以使整体结构更加简单，易于加工。
两个第二引导面121可以是直接相交的，此时第二导向段120可以具有“V”型截面。两个第二引导面121也可以是不直接相交的，两个第二引导面121之间可以设置有第三导向段130。下面将结合附图对第三导向段130进行详细的说明。
在本公开的一个实施例中，参见图7，抬钳座100上还设置有第三导向段130，第三导向段130从连接端113朝向抬钳座100的背面且远离转动轴端倾斜延伸。第三导向段130位于第二导向段120的中部区域，该中部区域指的是第二导向段120在与抬钳座100的长度轴方向垂直的方向(例如抬钳座100的宽度方向)上的中间区域。参见图7，抬钳座100的宽度方向指的是图中所示的水平方向。第三导向段130构造成将第二规格器械920引导到预设的伸出路径上。第二导向段120还可以被构造为引导第二规格器械920从抬钳座100的两侧往第二导向段120的中部区域运动进而进入第三导向段130。预设的伸出路径指的是第二规格器械920经第三导向段130伸出时移动的路径，第二规格器械920通常尺寸较小，例如第二规格器械920可以是穿刺针鞘管。抬钳座100处于放倒状态时，由于第三导向段130从连接端113朝向抬钳座100的背面且远离转动轴端倾斜延伸，第二规格器械920可以不接触第三导向段130。具体地，在第二规格器械920的回撤过程中，可以使抬钳座100处于放倒状态，第二规格器械920在第一导向段110的引导下由预设的回撤路径回撤。第二规格器械920在伸出时，抬钳座100可以处于远端抬起的抬起状态，具体参阅图6。第二规格器械920通常具有一定的刚性，于是第二规格器械920更倾向于与抬起的抬钳座100的远端接触，也就是与第三导向段130接触，并经第三导向段130的引导由预设的伸出路径伸出。第三导向段130的设置可以使得穿过器械通道330的医疗器械为第二规格器械920时，抬钳座100对第二规格器械920的支撑和导向效果更好。参见图5和图6，第三导向段130的尺寸也较小，因此可以对尺寸较小的第二规格器械92起到更好的支撑和侧向限位作用，第二规格器械920在使用中往往处于伸出状态，第三导向 段130可以避免第二规格器械920在使用过程中的晃动。
参阅图9，第二导向段120可以包括两个第二引导面121，第三导向段130可以形成在两个第二引导面121之间。第二引导面121与第三导向段130的侧壁之间的夹角γ可以不小于135°。第二引导面121与第三导向段130的侧壁之间的夹角形成钝角，利于大尺寸器械例如第一规格器械910回撤时的引导。
第三导向段130可以包括两个第三引导面131，两个第三引导面131可以关于抬钳座100的长度轴对称设置，且两个第三引导面131之间的夹角可以大于90°且小于180°。将两个第三引导面131之间的夹角设置为钝角，可以便于第二规格器械920进入并保持在第三导向段130包围的空间内，例如将第二规格器械920保持在第三导向段130的中部区域。与第二导向段120的中部区域类似地，第三导向段130的中部区域也指的是第三导向段130在抬钳座100的宽度方向上的中间区域。第三导向段130具有两个第三引导面131，第二规格器械920在两个第三引导面131的引导下，无论在回撤还是伸出时，都有保持位于第三导向段130的中部区域的倾向。也就是说，如果第二规格器械920在使用时偏离了第三导向段130的中部区域的延伸方向，撤去外力后，第二规格器械920会在第三引导面131的引导下，朝向第三导向段130的中部区域移动。例如，第二规格器械920在使用中，如果偏离了第三导向段130的中部区域，而较为靠近第三导向段130的中部区域的左侧或者右侧，这样在撤去外力后，第二规格器械920会在第三引导面131的引导下，朝向第三导向段130的中部区域移动。第三导向段130的中部区域的延伸方向可能平行于抬钳座100的长度轴、可能与抬钳座100的长度轴具有夹角、也可能相对于抬钳座100的长度轴呈弯曲状。图示实施例中，第三引导面131为两个对称面的形式，此时第三导向段130的中部区域指的是两个对称面之间的区域。两个第三引导面131可以均是平面的形式，也可以均是曲面的形式。两个第三引导面131可以是相同的也可以是不同的。图示实施例中，两个第三引导面131为两个倾斜的平面。两个第三引导面131可以不直接相交。在未示出的实施例中，两个第三引导面131可以是直接相交的，此时第三导向段130具有“V”型截面。两个第三引导面131之间的夹角大于90°且小于180°的抬钳座100，可以适配更多尺寸的第二规格器械920以及更好地将第二 规格器械920保持在预定的伸出路径上，而且两个第三引导面131对称可以使整体结构更加简单，易于生产加工成型。
参见图8和图9，第一导向段110可以包括两个第一引导面111，两个第一引导面111可以关于抬钳座100的长度轴对称设置。第三导向段130可以包括两个第三引导面131。两个第一引导面111之间的夹角可以小于两个第三引导面131之间的夹角。两个第三引导面131之间的夹角如果小于两个第一引导面111之间的夹角，可能会在两个第三引导面131与两个第一引导面111的交接处形成朝向抬钳座100的转动轴端的台阶面。在第二规格器械920的伸出过程中，该台阶面有可能会阻挡第二规格器械920从两个第一引导面111之间伸出到两个第三引导面131之间，导致第二规格器械920发生卡顿，甚至导致第二规格器械920无法进入第三导向段130。因此，两个第一引导面111之间的夹角小于两个第三引导面131之间的夹角，可以确保第一导向段110上向远端继续移动的第二规格器械920可以由第一导向段110顺滑地进入第三导向段130，而不会在第一导向段110与第三导向段130交界处因边界尺寸的变化发生卡顿。而在第二规格器械920的回撤过程中，可以使抬钳座100处于放倒状态，在此情况下，两个第三引导面131几乎不发挥作用，第二规格器械920被支撑在第一导向段110上，因此第二规格器械920的回撤过程也将是顺利的。
在两个第三引导面131不直接相交的情况下，第三导向段130上可以设置有第三中心槽132，第三中心槽132可以形成在两个第三引导面131之间。第三中心槽132可以是连接在两个第三引导面131之间的平面，也可以是远离第三引导面131凹陷的曲面，或者还可以是其他任意合适的面。第三中心槽132的设置可以为处于第三导向段130的中间区域的第二规格器械920提供更好的支撑。
进一步地，第三中心槽132的截面可以为圆弧形。这样的第三中心槽132可以适配于具有更小尺寸的圆形截面的医疗器械，以对这样的医疗器械提供更好的支撑和导向作用。
截面为圆弧形的第三中心槽132可以具有圆弧直径，圆弧直径可以不大于19G。G表示的是穿刺针鞘管的外径单位，不同的穿刺针鞘管对应的G换算成国际单位制所得数值可能不同。参见图11，图中小圈表示市场上最小尺寸的穿刺针鞘管截面，图中大圈表示市场上最大尺寸的穿刺针鞘管 截面。目前，市场上最大尺寸的穿刺针鞘管直径为19G，市场上最小尺寸的穿刺针鞘管直径为25G。如图所示，直径范围在19G～25G之间的穿刺针鞘管穿过器械通道330到达抬钳座100时，会位于第三导向段130内，并且受到第三引导面131的支撑。图示实施例中，位于第三导向段130内的穿刺针鞘管会有两个支撑点，两个支撑点分别位于两个第三引导面131上。其中，直径越小的穿刺针鞘管，两个支撑点的高度越低，直径越大的穿刺针鞘管，两个支撑点的高度越高。这样，两个支撑点可以对穿刺针鞘管提供良好的支撑和侧向限位，避免了穿刺针鞘管在使用过程中的晃动。进一步地，这样的抬钳座100支撑有市场上最大尺寸的穿刺针鞘管时，亦即支撑有直径为19G的穿刺针鞘管时，支撑点恰好位于第二引导面121和第三引导面131的交界点。这里的19G～25G可以是取值在1.1mm～0.5mm之间的。这样的抬钳座100可以适配于各种型号的穿刺针鞘管，适用范围更广。
参见图6，以第二规格器械920为穿刺针鞘管为例。穿刺针鞘管伸出至头端部200的外部时，实际上是抬钳座100的远端和器械通道330的顶部对穿刺针鞘管提供了支撑和限位。抬钳座100的远端设置有第三导向段130，并进一步在第三导向段130上设置有第三中心槽132时，对于伸出的穿刺针鞘管提供支撑和限位的是第三中心槽132和器械通道330的顶部。由于第三中心槽132可以类似理解为在抬钳座100的远端挖去了一部分形成的，支撑部分的高度降低了，因此此时穿刺针鞘管的远端的高度会下降，也就是说，穿刺针鞘管的远端可以更加靠近头端部200的远端，亦即穿刺针鞘管的远端可以更加靠近探头位置。结合参见图5，照明窗210和摄像头220的光学采集区域有限，更加靠近探头位置的第二规格器械920可以减少操作时的视野盲区，增强了辅助治疗或诊疗的效果。
进一步地，参见图9和图10，第一中心槽112的中心轴线(图示L-L线)与第三中心槽132的中心轴线(图示M-M线)的夹角α大于或等于10°且小于或等于45°。夹角α过大时，伸出的第二规格器械920的远端过于靠近探头位置，可能会影响探头探测或对探头发生破坏；夹角α过小时，减少操作时的视野盲区的作用不明显，经多次反复试验调试表明，将夹角α取值在10°～45°较为合适，如此设计，既使得医疗器械的远端处于照明窗210和摄像头220的光学采集区域中，减少了操作医疗器械时的视野盲区，还避免了医疗器械的远端对探头的干扰甚至是破坏。
参见图10，第一引导面111朝向的抬钳座100的远端的延伸面与第二引导面121之间可以存在夹角β，夹角β可以大于或等于30°且小于或等于60°，例如夹角β可以是30°、40°、42°、50°、53°、55°或60°。如果夹角β小于30°，第二导向段120从连接端113朝抬钳座100的背面倾斜的程度小，可以理解为抬钳座100的远端仍有一定的厚度，台阶部911回撤至抬钳座100时，有可能无法首先与第二导向段120接触，此时第二导向段120无法对台阶部911快速形成支撑，这样在第一规格器械910回撤时仍会有明显的卡顿感；而如果夹角β大于60°，第二导向段120从连接端113朝抬钳座100的背面倾斜的程度太大，可以理解为第二导向段120形成了抬钳座100的远端，第一规格器械910回撤时，台阶部911会在第二导向段120处产生明显的卡顿，而且第二导向段120对第一规格器械910的支撑力F2在X-X方向上的分力F21将会过大，导致第一规格器械910回撤困难。
如前所述地，不同类型的第二规格器械920可能具有不同的尺寸。在第三导向段130上支撑有市场上最大尺寸的第二规格器械920的情况下，例如第三导向段130上支撑有市场上最大尺寸的穿刺针鞘管时，穿刺针鞘管的横截面与第三导向段130相切的切点可以恰好能搭靠在第三导向段130上，例如切点可以落在图8、图9和图10所示的P处。同时，该切点P也是第一导向段110和第二导向段120的相交点，或者说，切点P也是第一导向段110和第二导向段120的分界点。第一导向段110的连接端113同样也经过切点P。这样的抬钳座100在生产时，由市场上最大直径的穿刺针鞘管可以确定切点P，进一步确定第一引导面111朝向的抬钳座100的远端的延伸面与第二引导面121之间的夹角β以及第二引导面121与第三导向段130的侧壁之间的夹角γ后，实际上就已经确定了第二引导面121的结构。于是，通过使第一导向段110和第二导向段120相交于第三导向段130上与具有预定直径的第二规格器械920相切的切点P，可以确定第二引导面121的结构。预定直径可以根据市场上最大尺寸的第二规格器械920来确定。
可以理解的是，本公开图8～10所示的抬钳座仅用于进行示例性说明，在其他的一些实施例中，任意两个相连接的引导面之间(例如，第一引导面111与第二引导面121之间，第二引导面121与第三引导面131之间， 第一引导面111与第三引导面131之间)以及任意两个相连接的中心槽之间(例如，第一中心槽与第三中心槽之间)，均可通过倒圆角或曲面过渡。
参见图12和13，第二导向段120可以包括多级引导面，例如在图示实施例中，第二导向段120可以包括第一级引导面1211和第二级引导面1212。第一级引导面1211和第二级引导面1212可以沿着抬钳座100的长度轴方向排列。第一级引导面1211比第二级引导面1212距离抬钳座100的转动轴端更远。另外，相较于第二级引导面1212，第一级引导面1211朝抬钳座100的背面倾斜的程度可以更大。第一规格器械910沿着回撤路径回撤时，多级引导面可以依次与台阶部911接触，并依次对台阶部911形成支撑，使得第一规格器械910在回撤路径上回撤时不会卡顿，而且回撤过程更加顺滑。
在本公开的描述中，需要理解的是，方位词如“前”、“后”、“上”、“下”、“左”、“右”、“横向”、“竖向”、“垂直”、“水平”和“顶”、“底”等所指示的方位或位置关系通常是基于附图所示的方位或位置关系，仅是为了便于描述本公开和简化描述，在未作相反说明的情况下，这些方位词并不指示和暗示所指的装置或元件必须具有特定的方位或者以特定的方位构造和操作，因此不能理解为对本公开保护范围的限制；方位词“内”、“外”是指相对于各部件本身的轮廓的内外。
为了便于描述，在这里可以使用区域相对术语，如“在……之上”、“在……上方”、“在……上表面”、“上面的”等，用来描述图中所示的一个或多个部件或特征与其他部件或特征的区域位置关系。应当理解的是，区域相对术语不但包含部件在图中所描述的方位，还包括使用或操作中的不同方位。例如，如果附图中的部件被整体倒置，则部件“在其他部件或特征上方”或“在其他部件或特征之上”的将包括部件“在其他部件或构造下方”或“在其他部件或构造之下”的情况。因而，示例性术语“在……上方”可以包括“在……上方”和“在……下方”两种方位。此外，这些部件或特征也可以其他不同角度来定位(例如旋转90度或其他角度)，本文意在包含所有这些情况。
需要注意的是，这里所使用的术语仅是为了描述具体实施方式，而非意图限制根据本公开的示例性实施方式。如在这里所使用的，除非上下文另外明确指出，否则单数形式也意图包括复数形式，此外，还应当理解的 是，当在本说明书中使用术语“包含”和/或“包括”时，其指明存在特征、步骤、操作、部件、组件和/或它们的组合。
需要说明的是，本公开的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本公开的实施方式能够以除了在这里图示或描述的那些以外的顺序实施。
本公开已经通过上述实施例进行了说明，但应当理解的是，上述实施例只是用于举例和说明的目的，而非意在将本公开限制于所描述的实施例范围内。此外本领域技术人员可以理解的是，本公开并不局限于上述实施例，根据本公开的教导还可以做出更多种的变型和修改，这些变型和修改均落在本发明所要求保护的范围以内。本发明的保护范围由附属的权利要求书及其等效范围所界定。

Claims (19)

  1. 一种抬钳座，包括转动轴端和远端，其特征在于：
    所述抬钳座的正面上设置有从所述远端朝所述转动轴端延伸的第一导向段，所述第一导向段具有远离所述转动轴端的连接端，所述第一导向段构造成将医疗器械引导到预设的伸出路径或者预设的回撤路径上；
    所述抬钳座上还设置有第二导向段，所述第二导向段从所述连接端朝向所述抬钳座的背面且远离所述转动轴端倾斜延伸；
    其中，所述第二导向段构造成对位于所述回撤路径上的第一规格器械的台阶部形成支撑，使所述台阶部朝向远离所述抬钳座的方向移动。
  2. 根据权利要求1所述的抬钳座，其特征在于，所述第一导向段包括两个第一引导面，两个所述第一引导面关于所述抬钳座的长度轴对称设置，且两个所述第一引导面之间形成大于90°且小于180°的夹角。
  3. 根据权利要求2所述的抬钳座，其特征在于，所述第一导向段包括第一中心槽，所述第一中心槽形成在两个所述第一引导面之间。
  4. 根据权利要求3所述的抬钳座，其特征在于，所述第一中心槽的截面为圆弧形。
  5. 根据权利要求2所述的抬钳座，其特征在于，所述第二导向段包括两个第二引导面，两个所述第二引导面关于所述抬钳座的长度轴对称设置。
  6. 根据权利要求5所述的抬钳座，其特征在于，所述第一引导面朝向所述抬钳座的远端的延伸面与所述第二引导面之间的夹角大于或等于30°且小于或等于60°。
  7. 根据权利要求1～6任一项所述的抬钳座，其特征在于，所述抬钳座上还设置有第三导向段，所述第三导向段从所述连接端朝向所述抬钳座的背面且远离所述转动轴端倾斜延伸，所述第三导向段位于所述第二导向段的中部区域，所述第三导向段构造成将第二规格器械引导到预设的伸出路径上。
  8. 根据权利要求7所述的抬钳座，其特征在于，所述第二导向段包括两个第二引导面，所述第三导向段形成在两个所述第二引导面之间。
  9. 根据权利要求8所述的抬钳座，其特征在于，所述第二引导面与所述第三导向段的侧壁之间的夹角不小于135°。
  10. 根据权利要求7所述的抬钳座，其特征在于，所述第三导向段包括两个第三引导面，两个所述第三引导面关于所述抬钳座的长度轴对称设置，且两个所述第三引导面之间形成大于90°且小于180°的夹角。
  11. 根据权利要求10所述的抬钳座，其特征在于，所述第一导向段包括两个第一引导面，两个所述第一引导面关于所述抬钳座的长度轴对称设置，两个所述第一引导面之间的夹角小于两个所述第三引导面之间的夹角。
  12. 根据权利要求10所述的抬钳座，其特征在于，所述第三导向段上设置有第三中心槽，所述第三中心槽形成在两个所述第三引导面之间。
  13. 根据权利要求12所述的抬钳座，其特征在于，所述第一导向段包括第一中心槽和两个第一引导面，两个所述第一引导面关于所述抬钳座的长度轴对称设置，所述第一中心槽形成在两个所述第一引导面之间，所述第一中心槽的中心轴线与所述第三中心槽的中心轴线的夹角大于或等于10°且小于或等于45°。
  14. 根据权利要求12所述的抬钳座，其特征在于，所述第三中心槽的截面为圆弧形。
  15. 根据权利要求14所述的抬钳座，其特征在于，所述第三中心槽具有圆弧直径，所述圆弧直径不大于19G。
  16. 根据权利要求7所述的抬钳座，其特征在于，所述第三导向段上具有与具有预定直径大小的所述第二规格器械相切的切点，所述第一导向段和所述第二导向段相交于所述切点。
  17. 根据权利要求1～16任一项所述的抬钳座，其特征在于，所述第二导向段包括多级引导面，所述第一规格器械在所述回撤路径上回撤时，所述多级引导面依次与所述台阶部接触。
  18. 一种内窥镜，其特征在于，所述内窥镜包括头端部，所述头端部上设置有如权利要求1-17中任一项所述的抬钳座。
  19. 根据权利要求18所述的内窥镜，其特征在于，所述头端部包括超声探头，所述超声探头的中轴线与所述伸出路径的中心线共面。
PCT/CN2024/120136 2023-09-22 2024-09-20 抬钳座和内窥镜 Pending WO2025061161A1 (zh)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH114804A (ja) * 1997-06-17 1999-01-12 Olympus Optical Co Ltd 内視鏡
JP2004267596A (ja) * 2003-03-11 2004-09-30 Pentax Corp 内視鏡の鉗子起上装置
CN111511262A (zh) * 2017-12-27 2020-08-07 Hoya株式会社 抬起器与内窥镜
CN218105854U (zh) * 2022-06-30 2022-12-23 深圳开立生物医疗科技股份有限公司 器械通道组件、插入部及内窥镜
CN221205377U (zh) * 2023-09-22 2024-06-25 深圳开立生物医疗科技股份有限公司 抬钳座和内窥镜

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH114804A (ja) * 1997-06-17 1999-01-12 Olympus Optical Co Ltd 内視鏡
JP2004267596A (ja) * 2003-03-11 2004-09-30 Pentax Corp 内視鏡の鉗子起上装置
CN111511262A (zh) * 2017-12-27 2020-08-07 Hoya株式会社 抬起器与内窥镜
CN218105854U (zh) * 2022-06-30 2022-12-23 深圳开立生物医疗科技股份有限公司 器械通道组件、插入部及内窥镜
CN221205377U (zh) * 2023-09-22 2024-06-25 深圳开立生物医疗科技股份有限公司 抬钳座和内窥镜

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