Multipurpose spinal endoscope

Abstract

A multipurpose spinal endoscope, comprising a mother scope and a daughter scope. The daughter scope can be inserted into the mother scope and detachably connected to the mother scope. The mother scope comprises a handle (2) and a working tube (1) disposed in the handle (2). A front end of the working tube (1) extends out from the handle (2). The working tube (1) is a bendable soft tube. The front end of the working tube (1) is sleeved with a catheter (3). The catheter (3) is connected to the handle (2). The daughter scope comprises a soft inner tube (4) and a control mechanism (5) for controlling the rotation direction of the inner tube (4). The control mechanism (5) is detachably connected to the handle (2). The handle (2) is provided with a through hole (21) for the insertion of the inner tube (4). A rear end of the working tube (1) is in communication with the through hole (21). A guide channel is formed in the working tube (1). The inner tube (4) can be inserted through the through hole (21) and then extend out from the front end of the working tube (1) after passing through the guide channel. The use of the daughter scope enables the spinal endoscope to extend to more distant or more remote target lesion positions, and the handle (2) can control the working state of the working tube (1) by means of the catheter (3), thereby enabling the spinal endoscope to meet various usage requirements.

Description

A multi-purpose endoscope for spinal column TECHNICAL FIELD

[0001] The present application relates to the field of medical devices, and in particular to a multi-purpose endoscope for spinal column. BACKGROUND

[0002] An endoscope for spinal column is a medical device for diagnosing and treating diseases of the spinal column. By inserting an elongated optical fiber endoscope into the patient's body, the internal structure of the spinal column can be observed and corresponding surgical operations can be performed for treatment. The endoscope for spinal column usually includes a handle and an insertion tube. The insertion tube of the endoscope for spinal column is currently mostly a hard tube, the proximal end of which is connected to the handle, and the handle can move and / or rotate the insertion tube to insert it into the human body. The distal end of the insertion tube is provided with a camera module which can be inserted into the target site and image the target site, thereby diagnosing and treating the target site.

[0003] The existing endoscope for spinal column, as shown in the Chinese utility model with the patent number CN202321425050.5 (the authorized announcement number CN220655608U), includes a main tube and a handle. The main tube is a hard tube endoscope that can be partially bent. The bendable part of the main tube is a bending tube installed on the outer wall of the main tube. The inner top wall of the bending tube is connected to a first steel wire rope, and the inner bottom wall of the bending tube is connected to a second steel wire rope. Pulling the first steel wire rope can bend the bending tube upward, and pulling the second steel wire rope can bend the bending tube downward, thereby adjusting the angle of the main tube of the endoscope for spinal column, facilitating the doctor to observe from multiple angles, and improving the success rate of the operation.

[0004] Although the aforementioned spinal endoscopes can adjust the angle of the insertion tube, in actual surgery, spinal endoscopes need to adapt to diverse and complex deep lesion scenarios. For example, if the target lesion is found to be further away or more laterally after insertion, the insertion tube needs to be lengthened or bent to reach the target lesion. In this case, a flexible tube needs to be combined with the spinal endoscope to further extend the working range of the insertion tube. In addition, sometimes surgery requires forceps to extract tissue samples from the lesion, which means that the spinal endoscope needs to be suitable for operations involving force. That is, the insertion tube of the spinal endoscope needs to be a rigid tube. Rigid spinal endoscopes can withstand greater pressure and tension, and flexible tubes need to be combined to extend and expand the working field of view and range. However, existing spinal endoscopes are mostly rigid tubes or partially flexible rigid tubes, which are often only suitable for one application scenario. They are not easy to access complex deep lesions, and operators need to perform additional operations depending on the location of the lesion. For example, they need to use tools such as endoscopic drills, trephine saws, and bone cutters to remove some normal bone to extend the working range of the current insertion tube. Therefore, further improvements are needed for spinal endoscopes.

[0005] Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a spinal endoscope that can be applied to a variety of usage needs, in light of the above-mentioned existing technology.

[0007] The technical solution adopted by the present invention to solve the above problems is as follows: This multi-purpose spinal endoscope includes a main endoscope and a secondary endoscope. The secondary endoscope can be inserted into the main endoscope and is detachably connected to the main endoscope. The main endoscope includes a handle and a working tube disposed within the handle. The front end of the working tube extends out of the handle. The working tube is characterized in that it is a flexible tube, and a guide tube is sleeved on the front end of the working tube. The guide tube is connected to the handle. The secondary endoscope includes a flexible inner tube and a control mechanism for controlling the rotation of the inner tube. The control mechanism is detachably connected to the handle. The handle is provided with a through hole for inserting the inner tube. The rear end of the working tube communicates with the through hole. A guide channel is formed inside the working tube. The inner tube can be inserted through the through hole, and then extend out from the front end of the working tube after passing through the guide channel.

[0008] As one possible design for the conduit, preferably, the conduit is a rigid tube, which is fitted over the front end of the working tube. The rigid conduit ensures that the working tube within it remains straight at all times, facilitating the corresponding operations.

[0009] As another alternative of the catheter, preferably, the catheter is a flexible tube, and the handle is provided with an adjusting mechanism connected with the catheter, and the adjusting mechanism is capable of controlling the steering of the catheter and adjusting the bending degree of the catheter. The flexible catheter enables the working tube sleeved therein to be bendable, that is, the adjusting mechanism controls the steering of the catheter, and the working tube bends to a corresponding degree along with the catheter.

[0010] In order to enable the adjusting mechanism to control the steering of the catheter, preferably, the adjusting mechanism comprises a wire wheel and two first adjusting ropes, the front end of the handle is provided with a knob, the knob is provided with a transmission rod fixedly connected with the knob and the wire wheel at two ends thereof, and the two first adjusting ropes are symmetrically arranged, and two ends of each of the first adjusting ropes are connected with the wire wheel and the catheter respectively, and rotating the knob is capable of driving the two first adjusting ropes to rotate by means of the transmission rod and the wire wheel, thereby controlling the steering of the catheter. The knob drives the wire wheel to rotate, and the first adjusting rope installed on the wire wheel also rotates correspondingly, thereby enabling the catheter to bend to a certain degree.

[0011] In order to make the use scene of the endoscope wider, preferably, a hard outer tube is sleeved on the catheter, and the outer tube is detachably connected with the handle. The flexible catheter is sleeved with the hard outer tube, so that the endoscope can be applied not only in the surgery requiring a flexible tube, but also in the surgery requiring a hard tube.

[0012] In order to enable the outer tube to be detachably connected with the handle, preferably, the knob is provided with a first connecting part, the first connecting part comprises an annular protrusion at the rear end and an outer thread on the peripheral wall at the front end, the rear end of the outer tube is provided with a mounting part for inserting the annular protrusion, and an inner thread is arranged on the inner peripheral wall of the mounting part, and the outer tube is detachably connected with the handle through the thread connection of the first connecting part and the mounting part. The outer tube and the handle are detachably connected in a thread connection mode.

[0013] In order to enable the control mechanism to be detachably connected with the handle, preferably, at least two elastic buckle members are arranged on the peripheral wall at the front end of the control mechanism, the buckle members are provided with guide inclined surfaces, the handle is provided with a second connecting part for mounting the buckle members, the second connecting part is provided with buckle grooves for clamping the buckle members, the second connecting part is arranged at the peripheral edge of the through hole and corresponds to the buckle members, and the control mechanism is detachably connected with the handle through the cooperation of the second connecting part and the buckle members. The control mechanism and the handle are detachably connected in a buckle connection mode.

[0014] In order to facilitate the insertion of the sub-mirror into the mother mirror, preferably, the through hole is arranged at the rear end of the handle, the handle is internally provided with a connecting piece, the two ends of the connecting piece are respectively communicated with the through hole and the rear end of the working pipe, and the through hole and the working pipe are communicated through the connecting piece. The inner pipe of the sub-mirror can be inserted into the working pipe from the connecting piece at the through hole, and then extended out of the front end of the working pipe through the guide channel of the working pipe.

[0015] In order to enable the control mechanism to control the steering of the inner pipe, preferably, the control mechanism comprises a housing, a handle, a rotating wheel and two second adjusting ropes, the rotating wheel and the second adjusting ropes are arranged in the housing, the two second adjusting ropes are symmetrically arranged, the front end of the second adjusting rope is connected with the inner pipe, the rear end of the second adjusting rope is wound on the rotating wheel, part of the structure of the handle is arranged in the housing and connected with the rotating wheel, the rest of the structure of the handle is exposed outside the housing, and rotating the handle can drive the rotating wheel to rotate, thereby changing the tightness of the two second adjusting ropes to control the steering of the inner pipe.

[0016] In order to enable the endoscopic spine to enter water and outlet water, preferably, the handle is further provided with a water inlet and a water outlet, the handle is internally provided with a water inlet pipe and a water outlet pipe, the two ends of the water inlet pipe are respectively communicated with the water inlet and the working pipe, and the two ends of the water outlet pipe are respectively communicated with the water outlet and the working pipe. The water flow flows into the working pipe through the water inlet pipe, and then flows out of the front end of the working pipe, so as to flush the target position and make the imaging of the target position clearer. The water after flushing flows from the working pipe to the water outlet pipe, and finally flows out of the water outlet.

[0017] Compared with the prior art, the advantages of the present application are that:

[0018] 1. The endoscopic spine utilizes the detachable connection of the sub-mirror and the mother mirror, so that the application range of the endoscopic spine is wider, that is, the inner pipe of the sub-mirror can be inserted into the working pipe of the mother mirror and extended out of the front end of the working pipe, so as to lengthen the length of the endoscopic spine pipe, enable the endoscopic spine to extend to a more remote or more deviated target lesion position, and further make the use of the endoscopic spine more.

[0019] 2. The endoscopic spine is provided with a guide pipe at the front end of the working pipe of the mother mirror, the guide pipe is linked with the handle, so that the handle can control the working state of the working pipe through the guide pipe, thereby enabling the endoscopic spine to meet diverse use requirements and adapt to different use scenarios. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 is a structural schematic view of the embodiment 1 of the present application;

[0021] Fig. 2 is an exploded schematic view of the embodiment 1 of the present application;

[0022] Fig. 3 is a sectional view of the embodiment 1 of the present application;

[0023] Fig. 4 is a schematic diagram of the structure of the working tube in Embodiment 1 of the present application;

[0024] Fig. 5 is a front view of the end of the catheter in Embodiment 1 of the present application;

[0025] Fig. 6 is a schematic diagram of the structure of the sub-scope in Embodiment 1 of the present application;

[0026] Fig. 7 is a schematic diagram of the structure of the sub-scope in Embodiment 1 of the present application (part of the shell is omitted);

[0027] Fig. 8 is a schematic diagram of Embodiment 2 of the present application;

[0028] Fig. 9 is an exploded schematic diagram of Embodiment 2 of the present application;

[0029] Fig. 10 is a sectional view of Embodiment 2 of the present application;

[0030] Fig. 11 is a schematic diagram of the structure of the mother-scope in Embodiment 2 of the present application;

[0031] Fig. 12 is a schematic diagram of the structure of the adjusting mechanism in Embodiment 2 of the present application. DETAILED DESCRIPTION

[0032] The present application will be further described in detail below with reference to the accompanying drawings.

[0033] As shown in Figs. 1-7, Embodiment 1 of the present application is described below.

[0034] As shown in Figs. 1-3, the endoscope of the present embodiment comprises a mother-scope and a sub-scope, the sub-scope can be inserted into the mother-scope and detachably connected with the mother-scope, the mother-scope comprises a handle 2 and a working tube 1 arranged in the handle 2, the working tube 1 is a soft tube capable of bending, a catheter 3 is arranged at the front end of the working tube 1, the catheter 3 is a hard tube, the catheter 3 keeps the working tube 1 in a straightened state, the catheter 3 is connected with the handle 2, the sub-scope comprises a soft inner tube 4 and a control mechanism 5 for controlling the steering of the inner tube 4, the control mechanism 5 is detachably connected with the handle 2, a through hole 21 is arranged on the handle 2 for the insertion of the inner tube 4, the front end of the working tube 1 extends out of the handle 2, the rear end of the working tube 1 is in communication with the through hole 21, a guide channel is formed in the working tube 1, the inner tube 4 can be inserted from the through hole 21 and then extended out of the front end of the working tube 1 through the guide channel.

[0035] As shown in Figs. 1 and 4, the handle 2 of the present embodiment is provided with a water inlet 25 and a water outlet 26, a water inlet pipe 11 and a water outlet pipe 12 are arranged in the handle 2, the two ends of the water inlet pipe 11 are in communication with the water inlet 25 and the working tube 1 respectively, the two ends of the water outlet pipe 12 are in communication with the water outlet 26 and the working tube 1 respectively. Furthermore, the handle 2 is provided with a push piece 9 on the water inlet 25 and the water outlet 26 respectively, the two push pieces 9 can control the opening and closing of the water inlet 25 and the water outlet 26 respectively.

[0036] As shown in FIG. 2 and FIG. 6, two elastic buckle members 51 are arranged on the peripheral wall of the front end of the control mechanism 5, the two buckle members 51 are symmetrically arranged, the buckle member 51 is provided with a guide inclined surface, the handle 2 is provided with a second connecting part 24 for mounting the buckle member 51, the second connecting part 24 is provided with a clamping groove 241 for clamping the buckle member 51, the second connecting part 24 is arranged at the periphery of the through hole 21 and is arranged correspondingly with the buckle member 51, through the cooperation of the second connecting part 24 and the buckle member 51, the control mechanism 5 and the handle 2 are detachably connected. The through hole 21 is arranged at the rear end of the handle 2, the handle 2 is provided with a connecting member 8, the two ends of the connecting member 8 are respectively communicated with the through hole 21 and the rear end of the working pipe 1, and the through hole 21 and the working pipe 1 are communicated through the connecting member 8.

[0037] As shown in FIG. 6 and FIG. 7, the control mechanism 5 further comprises a housing 52, a handle 53, a rotating wheel 54 and two second adjusting ropes 55, the rotating wheel 54 and the second adjusting ropes 55 are arranged in the housing 52, the two second adjusting ropes 55 are symmetrically arranged, the front end of the second adjusting rope 55 is connected with the inner pipe 4, the rear end of the second adjusting rope 55 is wound on the rotating wheel 54, part of the structure of the handle 53 is located in the housing 52 and is connected with the rotating wheel 54, the rest of the structure of the handle 53 is exposed outside the housing 52, rotating the handle 53 can drive the rotating wheel 54 to rotate, thereby changing the tightness of the two second adjusting ropes 55 to control the steering of the inner pipe 4.

[0038] As shown in FIG. 5, the imaging module is arranged in the parent mirror and the child mirror, the front end of the catheter 3 and the inner pipe 4 is provided with an observation window, the imaging module can realize imaging through the observation window of the catheter 3 or the inner pipe 4, the front end of the catheter 3 is further provided with a perforation 31 for the working pipe 1 to pass through, the perforation 31 is arranged adjacent to the observation window of the catheter 3.

[0039] The working process of the embodiment is as follows: the inner pipe 4 of the child mirror is inserted from the through hole 21 of the handle 2, extends into the guide channel of the working pipe 1 through the connecting member 8, and then extends out from the front end of the working pipe 1, the buckle member 51 of the control mechanism 5 is clamped in the clamping groove 241 of the second connecting part 24, thereby completing the connection of the child mirror and the parent mirror; the user inserts the parent mirror and the child mirror of the spinal endoscope into the human body, rotating the handle 53 can drive the rotating wheel 54 to rotate, thereby changing the tightness of the two second adjusting ropes 55, and then controlling the steering of the inner pipe 4, so that the observation window at the front end of the inner pipe 4 is aligned with the target position.

[0040] As shown in FIG. 8-12, it is embodiment 2 of the present application.

[0041] As shown in FIG. 8-12, the difference between the embodiment and the embodiment 1 is that the catheter 3 is a flexible soft pipe, the handle 2 is provided with an adjusting mechanism 6 connected with the catheter 3, the adjusting mechanism 6 can control the steering of the catheter 3 and adjust the bending degree of the catheter 3.

[0042] As shown in Fig. 12, the adjusting mechanism 6 of the present embodiment comprises a wire wheel 61 and two first adjusting ropes 62, the front end of the handle 2 is provided with a knob 22, the knob 22 is provided with a transmission rod 23, the two ends of the transmission rod 23 are fixedly connected with the knob 22 and the wire wheel 61 respectively, the two first adjusting ropes 62 are symmetrically arranged, the two ends of each first adjusting rope 62 are connected with the wire wheel 61 and the guide tube 3 respectively, and rotating the knob 22 can drive the two first adjusting ropes 62 to rotate by means of the transmission rod 23 and the wire wheel 61, so as to control the steering of the guide tube 3.

[0043] And the difference between the present embodiment and embodiment 1 is that the guide tube 3 of the present embodiment is further sleeved with a hard outer tube 7, and the outer tube 7 is detachably connected with the handle 2. Specifically, the knob 22 of the present embodiment is provided with a first connecting part 221, the first connecting part 221 comprises an annular protrusion 221a at the rear end and an outer thread 221b on the outer peripheral wall at the front end, the rear end of the outer tube 7 is provided with a mounting part 71 for inserting the annular protrusion 221a, the inner peripheral wall of the mounting part 71 is provided with an inner thread 711, and the outer thread 221b can be threadedly connected with the inner thread 711. Through the threaded connection between the first connecting part 221 and the mounting part 71, the outer tube 7 and the handle 2 are detachably connected.

[0044] The working process of the present embodiment is as follows:

[0045] A. In the state that the user only uses the mother mirror, the guide tube 3 of the mother mirror is inserted into the human body, and rotating the knob 22 drives the wire wheel 61 of the adjusting mechanism 6 to rotate by means of the transmission rod 23, and then drives the two first adjusting ropes 62 installed on the wire wheel 61 to rotate, so as to control the steering of the guide tube 3, and make the observation window at the front end of the guide tube 3 align with the target position;

[0046] B. In the state that the user uses the mother mirror and the son mirror, the inner tube 4 of the son mirror is inserted from the through hole 21 of the handle 2, extends into the guide channel of the working tube 1 through the connecting piece 8, and then extends out from the front end of the working tube 1, the buckle piece 51 of the control mechanism 5 is clamped in the clamping groove 241 of the second connecting part 24, so as to complete the connection of the son mirror and the mother mirror; the user inserts the mother mirror and the son mirror of the endoscope into the human body, rotating the handle 53 can drive the rotating wheel 54 to rotate, so as to change the tightness of the two second adjusting ropes 55, and then control the steering of the inner tube 4, and make the observation window at the front end of the inner tube 4 align with the target position;

[0047] C, in the state that the user uses the outer tube 7, the catheter 3 is inserted into the outer tube 7 until the annular protrusion 221a on the knob 22 of the handle 2 is inserted into the mounting portion 71 of the outer tube 7 and is screwed with the inner thread 711 of the mounting portion 71 through the outer thread 221b of the first connecting portion 221, so that the connection of the outer tube 7 and the handle 2 is realized; the user inserts the outer tube 7 into the human body and aligns the observation window on the catheter 3 or the inner tube 4 with the target position.

Claims

1. A multi-purpose endoscope for spine, comprising a mother scope and a daughter scope, the daughter scope being capable of being inserted into the mother scope and detachably connected with the mother scope, the mother scope comprising a handle (2) and a working tube (1) arranged in the handle (2), the working tube (1) having a front end extending out of the handle (2), characterized in that: The working tube (1) is a flexible soft tube, a catheter (3) is sleeved on the front end of the working tube (1), the catheter (3) is connected with a handle (2), the sub-mirror comprises a soft inner tube (4) and a control mechanism (5) for controlling the steering of the inner tube (4), the control mechanism (5) is detachably connected with the handle (2), a through hole (21) for inserting the inner tube (4) is arranged on the handle (2), the rear end of the working tube (1) is communicated with the through hole (21), a guide channel is formed in the working tube (1), the inner tube (4) can be inserted from the through hole (21), and then extended out from the front end of the working tube (1) after passing through the guide channel.

2. The endoscope according to claim 1, wherein: The catheter (3) is a hard tube, and the catheter (3) is sleeved on the front end of the working tube (1).

3. The endoscope according to claim 1, wherein: The catheter (3) is a flexible soft tube, and an adjusting mechanism (6) connected with the catheter (3) is arranged on the handle (2), the adjusting mechanism (6) can control the steering of the catheter (3) and adjust the bending degree of the catheter (3).

4. The endoscope according to claim 3, wherein: The adjusting mechanism (6) comprises a thread wheel (61) and two first adjusting ropes (62), a rotary knob (22) is arranged on the front end of the handle (2), a transmission rod (23) is arranged on the rotary knob (22), the two ends of the transmission rod (23) are fixedly connected with the rotary knob (22) and the thread wheel (61) respectively, and the two first adjusting ropes (62) are symmetrically arranged, the two ends of each first adjusting rope (62) are connected with the thread wheel (61) and the catheter (3) respectively, and the rotary knob (22) is rotated to drive the two first adjusting ropes (62) to rotate through the transmission rod (23) and the thread wheel (61), so that the steering of the catheter (3) is controlled.

5. The endoscope according to claim 4, wherein: The catheter (3) is sleeved with a hard outer tube (7), and the outer tube (7) is detachably connected with the handle (2).

6. The endoscope according to claim 5, wherein: A first connecting part (221) is arranged on the rotary knob (22), the first connecting part (221) comprises an annular protrusion (221a) at the rear end and an outer thread (221b) on the peripheral wall at the front end, a mounting part (71) for inserting the annular protrusion (221a) is arranged at the rear end of the outer tube (7), an inner thread (711) is arranged on the inner peripheral wall of the mounting part (71), the outer tube (7) and the handle (2) are detachably connected through the thread connection between the first connecting part (221) and the mounting part (71).

7. The endoscope according to claim 1, wherein: At least two elastic buckle members (51) are arranged on the peripheral wall of the front end of the control mechanism (5), a guide inclined surface is arranged on the buckle member (51), a second connecting part (24) for mounting the buckle member (51) is arranged on the handle (2), a clamping groove (241) for clamping the buckle member (51) is arranged on the second connecting part (24), the second connecting part (24) is arranged at the peripheral edge of the through hole (21) and corresponds to the buckle member (51), and the control mechanism (5) and the handle (2) are detachably connected through the cooperation between the second connecting part (24) and the buckle member (51).

8. The endoscope according to claim 7, wherein: The through hole (21) is arranged at the rear end of the handle (2), the handle (2) is internally provided with a connecting piece (8), the two ends of the connecting piece (8) are respectively communicated with the through hole (21) and the rear end of the working pipe (1), and the through hole (21) and the working pipe (1) are communicated through the connecting piece (8).

9. The endoscope according to claim 1, wherein: The control mechanism (5) comprises a shell (52), a handle (53), a rotating wheel (54) and two second adjusting ropes (55), the rotating wheel (54) and the second adjusting ropes (55) are arranged in the shell (52), the two second adjusting ropes (55) are symmetrically arranged, the front ends of the second adjusting ropes (55) are connected with the inner pipe (4), the rear ends of the second adjusting ropes (55) are wound on the rotating wheel (54), part of the structure of the handle (53) is arranged in the shell (52) and connected with the rotating wheel (54), the rest of the structure of the handle (53) is exposed outside the shell (52), the handle (53) can drive the rotating wheel (54) to rotate by being rotated, and then the tightness of the two second adjusting ropes (55) is changed, so that the steering of the inner pipe (4) is controlled.

10. The endoscope according to claim 1, wherein: The handle (2) is further provided with a water inlet (25) and a water outlet (26), the handle (2) is internally provided with a water inlet pipe (11) and a water outlet pipe (12), the two ends of the water inlet pipe (11) are respectively communicated with the water inlet (25) and the working pipe (1), and the two ends of the water outlet pipe (12) are respectively communicated with the water outlet (26) and the working pipe (1).

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