A guiding auxiliary device for surgical flexible mirror
By designing a guiding auxiliary device for flexible surgical endoscopes, and utilizing a bamboo-joint rod and adjustment control mechanism to achieve directional bending of the endoscope, the problem of existing guiding devices being unable to provide directional guidance at joint sites is solved, thereby improving surgical efficiency and precision.
Patent Information
- Application Number
- CN202211232705.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-10-10
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2042-10-10
AI Technical Summary
Existing guiding devices can only achieve linear guidance of flexible endoscopes and cannot bend in a directional manner at joint sites, which increases the difficulty and reduces the efficiency of surgery, especially in areas with large cavities and easy obstruction, making it difficult to effectively observe the location of lesions.
A guiding aid device for a flexible surgical endoscope was designed, including a handle and a unidirectional bending bamboo-joint rod. By adjusting the control mechanism and the locking mechanism, the flexible endoscope can be directionally bent. By utilizing the cooperation of the elastic element and the adjusting rope, the rod can automatically deflect in one direction and lock in the target position.
It enables the flexible endoscope to bend in a directional manner in areas with large cavities and where obstructions are likely to occur, improving surgical efficiency and precision, reducing surgical difficulty, and shortening patient recovery time.
Smart Images
Figure CN115530895B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of medical devices, in particular to a guiding auxiliary device for soft endoscope. BACKGROUND
[0002] Soft endoscope is a new endoscopic technology, which has advanced optical transmission system and digital imaging system. The soft endoscope is thin and soft, and does not damage human tissues during the operation. The end of the soft endoscope can be bent up and down, which is beneficial to more comprehensive observation of the lesion, especially when the hard endoscope cannot be observed. However, the soft endoscope is usually used in the urethra, gastrointestinal tract and other body parts with natural channels. The soft endoscope can reach the lesion site by extending along the natural channel. By rotating the soft endoscope externally and cooperating with the bending part at the end of the soft endoscope, the specific condition of the lesion can be clearly observed, so that the operation precision and efficiency are high. However, for joint parts without natural channels, the lens end of the soft endoscope needs to reach the lesion site by using a guiding device. However, the existing guiding devices can only complete straight-line guiding, and the direction of the soft endoscope cannot be limited. For joint cavities with large channel gaps but easy to appear blocking parts, sometimes the blocking parts need to be bypassed to better observe the lesion site. The use of the existing guiding device is limited, which increases the difficulty of the operation and affects the operation efficiency and the recovery time of the patient. SUMMARY
[0003] Therefore, the present application provides a guiding auxiliary device for soft endoscope to solve the above technical problems.
[0004] To achieve the above object, the present application provides the following technical scheme:
[0005] A guiding auxiliary device for soft endoscope, comprising a handle part and a segmented rod capable of one-way bending connected in series, the segmented rod is composed of a plurality of segment rods connected in series at the head and tail, the segment rod at the head end is connected with the corresponding end of the soft endoscope, an elastic member is arranged between the two adjacent segment rods, one end of the corresponding adjusting pull rope connected with the adjusting control mechanism arranged on the handle part is connected with the corresponding segment rod, and the force direction of the adjusting pull rope is opposite to the force direction of the elastic member, wherein the adjusting control mechanism comprises a seat body and a plurality of locking mechanisms arranged on the seat body, a plurality of rope passing holes for the adjusting pull rope to pass through are arranged on the seat body, and the corresponding locking mechanism acts on the corresponding adjusting pull rope.
[0006] Further, the seat body comprises a fixed seat connected with the handle part and a first pressing cover detachably connected with the fixed seat, the rope passing hole is arranged on the fixed seat, the locking mechanism comprises a first arc-shaped pressing block, a pressing rod and an elastic locking piece, the first arc-shaped pressing block is slidably fitted with a corresponding guide hole penetrating the side wall of the rope passing hole and abuts against the corresponding adjusting pull rope, the pressing rod is slidably penetrated through the first pressing cover and slidably fitted with a first connecting rod of the first arc-shaped pressing block, a buffer spring sleeved on the first connecting rod abuts against the pressing rod, and the elastic locking piece is locked with a corresponding annular convex tooth arranged on the pressing rod to make the first arc-shaped pressing block keep pressing the adjusting pull rope.
[0007] Further, the annular convex tooth and the elastic locking piece are located in the guide hole, the elastic locking piece has a plurality of elastic locking arms distributed in an annular shape and inclined, and a plurality of drive rods of an unlocking drive frame of the locking mechanism respectively abut against corresponding elastic locking arms through the first pressing cover.
[0008] Further, an annular plate connected with the drive rod is sleeved on the outer ring of the pressing rod, a reset spring sleeved on the annular plate abuts against the first pressing cover and the annular plate, and the first pressing cover is further provided with a pressing cover nut for blocking the unlocking drive frame from being separated from the first pressing cover.
[0009] Further, the pressing cover nut is arranged between the pressing rod and the annular plate, and the pressing cover nut has a convex edge for blocking the annular plate.
[0010] Further, both ends of the joint rod are respectively provided with a pin ear and a notched groove, the pin ear is pivoted in the notched groove of another joint rod through a pin shaft, and torsion springs having two ends respectively connected with corresponding joint rods are sleeved on the pin shaft.
[0011] Further, the pin ear has a limiting protrusion, and the notched groove has a shoulder capable of blocking the rotation of the limiting protrusion.
[0012] Further, the adjusting control mechanism further comprises a plurality of elastic damping mechanisms arranged on the seat body, the elastic damping mechanism comprises a second arc-shaped pressing block, an adjusting nut and a pressing spring, the second arc-shaped pressing block is slidably fitted with a corresponding guide hole penetrating the side wall of the rope passing hole and abuts against the corresponding adjusting pull rope, the adjusting nut is threadedly connected on the seat body and slidably sleeved with a second connecting rod of the second arc-shaped pressing block, and the pressing spring is sleeved on the second connecting rod and abuts against the adjusting nut.
[0013] From the above technical solutions, the advantages of the present application are that the soft mirror can be oriented and bent by using the guiding auxiliary device, and the device can be better applied to the parts with large cavities and easy obstacles.
[0014] In addition to the above described objects, features and advantages, the present application has other objects, features and advantages. The present application will be further described in detail below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS
[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can be obtained from these drawings without creative labor.
[0016] Figure 1 It is a structural schematic diagram of the present application in a straight rod state.
[0017] Figure 2 It is a structural schematic diagram of the present application in a bent state.
[0018] Figure 3 It is a front view structural schematic diagram of the pivot joint part of the section rod of the present application.
[0019] Figure 4 It is a plan view structural schematic diagram of the pivot joint part of the section rod of the present application.
[0020] Figure 5 It is an external structural schematic diagram of the adjusting control mechanism of the present application.
[0021] Figure 6 It is a sectional view schematic diagram of the present application in the A-A direction of Figure 5
[0022] Figure 7 It is an enlarged structural schematic diagram of the structure at C in the present application in Figure 6
[0023] Figure 8 It is a sectional view schematic diagram of the present application in the B-B direction of Figure 5
[0024] Figure 9 It is an enlarged structural schematic diagram of the structure at D in the present application in Figure 8
[0025] List of reference signs: handle part 1, joint rod 2, pin ear 21, limiting protrusion 22, notch groove 23, stop shoulder 24, adjusting pull rope 3, adjusting control mechanism 4, fixing seat 41, rope passing hole 42, second pressing cover 43, first pressing cover 44, elastic damping mechanism 45, second arc-shaped pressing block body 451, second connecting rod 4511, adjusting nut 452, top pressing spring 453, locking mechanism 46, first arc-shaped pressing block body 461, first connecting rod 4611, pressing rod 462, annular convex tooth 4621, elastic locking member 463, elastic locking arm 4631, unlocking drive frame 464, drive rod 4641, reset spring 465, pressing cover nut 466, buffer spring 467, through hole 47, soft mirror 5, operating part 51, soft body section 52, bending section 53, torsion spring 6, pin shaft 7. DETAILED DESCRIPTION
[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.
[0027] Reference Figures 1 to 9 Further description will be made to the present application, such as Figure 1 , Figure 2 , Figure 5 and Figure 8The application discloses a guiding auxiliary device for a surgical flexible endoscope, which comprises a handle part 1 and a one-way bending bamboo joint rod connected with the handle part 1, the bamboo joint rod is composed of a plurality of joint rods 2 connected in sequence, the joint rod 2 at the first end is connected with the corresponding end of the flexible endoscope 5, elastic members are arranged between the two adjacent joint rods 2 to enable the joint rod 2 to automatically and unidirectionally deflect, one end of a corresponding adjusting pull rope 3 connected with the adjusting control mechanism 4 arranged on the handle part 1 is connected with the corresponding joint rod 2, the force direction of the adjusting pull rope 3 is opposite to the force direction of the elastic member, the adjusting pull rope 3 and the elastic member cooperate to enable the joint rod 2 to keep a stable state, wherein the adjusting control mechanism 4 comprises a seat body and a plurality of locking mechanisms 46 arranged on the seat body, a plurality of rope penetrating holes 42 through which the adjusting pull rope 3 penetrates are arranged on the seat body, and the corresponding locking mechanism 46 acts on the corresponding adjusting pull rope 3.
[0028] Specifically, the flexible endoscope 5 comprises a control part 51, a soft body section 52 and a bending section 53 connected in sequence, the control part 51 is located outside the body, one end of the soft body section 52 close to the bending section 53 is fixedly connected with the joint rod 2 at the first end, the bamboo joint rod is guided into the body, and the bending section 53 is bent in a corresponding direction by controlling the control part 51.
[0029] In the embodiment of the application, the two ends of the joint rod 2 are respectively provided with pin ears 21 and notched grooves 23, the pin ear 21 is pivoted in the notched groove 23 of another joint rod 2 through a pin shaft 7, and torsional springs 6 connected with the corresponding joint rods 2 at two ends are arranged on the pin shaft 7.
[0030] Specifically, the pin ear 21 is composed of two ear plates, the torsional spring 6 is located between the two ear plates, the pin ear 21 cooperates with the notched groove 23 to keep the position of the joint rod 2 stable, the elastic forces of all the torsional springs 6 increase in sequence, and the elastic force of the torsional spring 6 closest to the handle part 1 is the largest, and the bamboo joint rod can also become a straight rod after the joint rod 2 connected with the handle part 1 deflects.
[0031] In the embodiment of the application, the pin ear 21 is provided with a limiting protrusion 22, and the notched groove 23 is provided with a shoulder 24 capable of blocking the rotation of the limiting protrusion 22.
[0032] Specifically, the circular arc surface of the pin lug 21 is formed by two semicircles with different diameters to form the limiting protrusion 22, and the deflection angle of the joint rod 2 is 90°.
[0033] As shown in Figure 5 , Figure 8 and Figure 9 , the seat body includes a fixed seat 41 connected with the handle part 1 and a first pressing cover 44 detachably connected with the fixed seat 41, the rope passing holes 42 are arranged on the fixed seat 41 in the axial direction, the locking mechanism 46 includes a first arc-shaped pressing block body 461, a pressing rod 462 and an elastic locking piece 463, the first arc-shaped pressing block body 461 is in sliding fit with the corresponding guide hole penetrating the side wall of the rope passing hole 42 and abuts against the corresponding adjusting pull rope 3, the pressing rod 462 is in sliding fit with the first connecting rod 4611 of the first arc-shaped pressing block body 461 and slides through the first pressing cover 44, the buffer spring 467 sleeved on the first connecting rod 4611 abuts against the pressing rod 462, and the elastic locking piece 463 is in locking connection with the corresponding annular convex tooth 4621 arranged on the pressing rod 462 to keep the first arc-shaped pressing block body 461 pressing the adjusting pull rope 3. In use, the pressing rod 462 is in locking connection with the elastic locking piece 463 to extrude the buffer spring 467, the buffer spring 467 pushes the first arc-shaped pressing block body 461 to keep pressing the adjusting pull rope 3 and lock the adjusting pull rope 3, so as to avoid the adjusting pull rope 3 from moving at will, and after the elastic locking piece 463 releases the pressing rod 462, the buffer spring 467 resets to reduce the pressure applied by the first arc-shaped pressing block body 461 to the adjusting pull rope 3, facilitating the adjusting pull rope 3 to be pulled and adjusted.
[0034] Specifically, the fixed seat 41 is in the shape of a nearly cylindrical column, a plurality of rope passing holes 42 are uniformly distributed in a ring shape, and the central part of the fixed seat 41 has a through hole 47 to reduce the weight of the application.
[0035] The annular convex tooth 4621 and the elastic locking piece 463 are both located in the guide hole, the annular convex tooth 4621 can meet the locking connection with the elastic locking piece 463 and prevent the pressing rod 462 from being separated from the first pressing cover 44, the elastic locking piece 463 is connected with the inner side surface of the first pressing cover 44, the elastic locking piece 463 has a plurality of elastic locking arms 4631 distributed in a ring shape and inclined, and a plurality of drive rods 4641 of an unlocking drive frame 464 of the locking mechanism 46 pass through the first pressing cover 44 and abut against the corresponding elastic locking arms 4631. Pressing the unlocking drive frame 464 can make all the elastic locking arms 4631 deform and separate from the annular convex tooth 4621, and then the pressing rod 462 is released.
[0036] Specifically, the pressing rod 462 has a plurality of annular teeth 4621 distributed along the axial direction, and the buffer spring 467 is prone to relaxation after long-term use, so as to meet different stages of use of the buffer spring 467.
[0037] The annular plate connected with the driving rod 4641 is arranged on the outer ring of the pressing rod 462, the reset spring 465 is arranged on the annular plate, and the first pressing cover 44 is arranged between the annular plate and the reset spring 465, and the pressing cover nut 466 for blocking the unlocking driving frame 464 from being separated from the first pressing cover 44 is further arranged on the first pressing cover 44.
[0038] Specifically, the pressing rod 462 penetrates the inner hole of the pressing cover nut 466, the pressing cover nut 466 penetrates the inner hole of the annular plate, the pressing cover nut 466 is arranged between the pressing rod 462 and the annular plate, and the pressing cover nut 466 has a convex edge for blocking the annular plate.
[0039] As shown in Figure 6 and Figure 7 The adjusting control mechanism 4 further includes a plurality of elastic damping mechanisms 45 arranged on the seat body, the elastic damping mechanism 45 includes a second arc-shaped pressing block body 451, an adjusting nut 452 and a pressing spring 453, the second arc-shaped pressing block body 451 is in sliding fit with a corresponding guide hole penetrating the side wall of the rope penetrating hole 42 and abuts against a corresponding adjusting pull rope 3, the adjusting nut 452 is threadedly connected to the second pressing cover 43 of the seat body and is in sliding fit with a second connecting rod 4511 of the second arc-shaped pressing block body 451, and the pressing spring 453 is arranged on the second connecting rod 4511 and abuts against the adjusting nut 452. When the adjusting pull rope 3 is released by the locking mechanism 46, the adjusting pull rope 3 slowly moves under the action of the pressing spring 453, so that the adjustment is controllable, the pre-compression of the pressing spring 453 is adjusted by rotating the adjusting nut 452, and the adjusting pull rope 3 at different positions is adjusted, so that the use is convenient.
[0040] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A guiding auxiliary device for a flexible surgical endoscope, characterized in that, The utility model relates to a handle (1) and the bamboo joint rod of one -way bending that can be connected, the bamboo joint rod is by the joint rod (2) of a plurality of head -to -tail connection, the joint rod (2) of corresponding end connection of soft mirror (5) is located the first end, the elastic member is equipped between two the joint rod (2) of adjacent, one end and the other end of corresponding adjusting pull rope (3) of adjusting control mechanism (4) that sets up on the handle (1) are connected with corresponding the joint rod (2) are connected, the force direction of adjusting pull rope (3) is opposite with the force direction of elastic member, wherein, adjusting control mechanism (4) includes the plurality of locking mechanism (46) of seat body and setting on the seat body, the seat body is equipped with a plurality of for the pull rope (3) passes through the wear rope hole (42), corresponding locking mechanism (46) acts on corresponding adjusting pull rope (3), wherein, the seat body includes with the handle (1) is connected fixed seat (41) and with the first gland nut (466) of detachable connection of fixed seat (41), wear rope hole (42) sets up on fixed seat (41), locking mechanism (46) includes first arc -shaped pressure block body (461), press lever (462) and elastic lock piece (463), first arc -shaped pressure block body (461) with the sliding fit of corresponding guide hole that penetrates wear rope hole (42) side wall and is opposite on corresponding adjusting pull rope (3), press lever (462) sliding penetrates first gland nut (44) and with the first connecting rod (4611) of first arc -shaped pressure block body (461) sliding fit, the buffer spring (467) of sleeve setting on first connecting rod (4611) is opposite on press lever (462), elastic lock piece (463) and the corresponding annular convex tooth (4621) of setting on press lever (462) lock piece connection makes first arc -shaped pressure block body (461) keep pressing adjusting pull rope (3), and the annular convex tooth (4621) and elastic lock piece (463) are all located in guide hole, elastic lock piece (463) has a plurality of along annular distribution and the elastic lock arm (4631) of inclination, the plurality of drive rod (4641) of unlocking drive frame (464) of locking mechanism (46) passes through first gland nut (44) respectively opposite on corresponding elastic lock arm (4631), the annular board of connection with drive rod (4641) is sleeve setting on the outer ring of press lever (462), reset spring (465) that sleeve setting is on drive rod (4641) is opposite between first gland nut (44) and annular board, first gland nut (44) still is equipped with the gland nut (466) for blocking unlocking drive frame (464) and first gland nut (44) separation.
2. The guide assist device for a surgical flexible scope of claim 1, wherein, The gland nut (466) is arranged between the press lever (462) and the annular plate, and the gland nut (466) has a convex edge for blocking the annular plate.
3. The guide assist device for a surgical flexible scope of claim 1, wherein, Both ends of the said joint rod (2) are respectively provided with pin lug (21) and notched groove (23), the pin lug (21) is pivoted in the notched groove (23) of another said joint rod (2) through pin shaft (7), the pin shaft (7) is sleeved with torsion spring (6) whose both ends are connected with corresponding said joint rod (2) respectively.
4. The guide assist device for a surgical flexible scope of claim 3, wherein, The said pin lug (21) is provided with limiting protrusion (22), the said notched groove (23) is provided with shoulder (24) which can block the rotation of the limiting protrusion (22).
5. The guide assist device for a surgical flexible scope of claim 1, wherein, The said adjusting control mechanism (4) further comprises a plurality of elastic damping mechanisms (45) arranged on the said seat body, the said elastic damping mechanism (45) comprises second arc-shaped pressing block body (451), adjusting nut (452) and pressing spring (453), the second arc-shaped pressing block body (451) is slidingly matched with corresponding guide hole penetrating through the side wall of the said rope passing hole (42) and abuts against corresponding said adjusting pull rope (3), the adjusting nut (452) is threadedly connected on the said seat body and slidingly sleeved with second connecting rod (4511) of the said second arc-shaped pressing block body (451), the pressing spring (453) is sleeved on the said second connecting rod (4511) and abuts against the said adjusting nut (452).
Citation Information
Patent Citations
Sinew-driven pseudohand finger mechanism
CN101073520A
Bidirectional bend-adjusting endoscope
CN108309207A