A rotatable transparent cap for endoscope

Abstract

The present invention discloses a rotatable transparent endoscope cap, which relates to the technical field of endoscope transparent caps. The cap comprises a transparent cap, a clamping device, and a control device. The transparent cap has an inner and outer ring structure, the clamping device is mounted on the outer ring of the double-ring transparent cap, and the control device is connected to the transparent cap. The present invention can be used in conjunction with endoscope-assisted surgical operations, helping doctors to more conveniently operate surgical instruments, thereby reducing surgical difficulty, shortening surgical time, and alleviating stress on doctors and pain on patients during surgery. Furthermore, due to the unique structure of the transparent cap, the present invention is multifunctional and adaptable to different surgical needs, thus offering high usability.

Description

Technical Field

[0001] The invention relates to the technical field of endoscope transparent caps, and in particular to a rotatable endoscope transparent cap. Background Art

[0002] During ESD surgery, the long, cut mucosa, lacking support, can easily collapse and obscure the surgical field of view, hindering surgical procedures. Furthermore, the cut site cannot be retrieved for pathological analysis after surgery. The surgeon uses a transparent cap with a fixed, additional foreign body channel to insert a biopsy forceps or hemostatic clamp. After clamping the mucosa, the surgeon uses a mucosal incision knife to continue the procedure, utilizing newly added auxiliary instruments to retract and remove the diseased mucosa within the human body. These procedures require a high level of skill from the surgeon. If the clamping angle is incorrect, key areas are not clamped, slippage occurs, or the underlying mucosa is insufficiently exposed, the surgery becomes more difficult, the operation time is prolonged, and it can even cause physical injury to the patient.

[0003] The current transparent cap cannot simultaneously accommodate the addition of additional surgical instruments and the adjustment of the angle at which the instruments are operated. To adjust the angle, the entire endoscope must be rotated or the endoscope lens removed and the transparent cap reinstalled. This can cause the endoscope to lose its view of the lesion and require a new search, greatly increasing the operation time and difficulty, causing physical discomfort to the patient and low surgical efficiency. Summary of the Invention

[0004] Purpose of the invention: The technical problem to be solved by the present invention is to provide a rotatable transparent cap for an endoscope, which solves the problem that the existing transparent cap cannot additionally support surgical instruments and the surgical instruments cannot adjust their angles.

[0005] Technical Solution

[0006] In order to solve the above problems, the technical solution provided by the present invention is:

[0007] A rotatable endoscope transparent cap includes a transparent cap, a clamping device, and a control device. The clamping device is installed on the transparent cap, and the control device is connected to the end of the transparent cap. The transparent cap includes an inner ring and an outer ring. The side wall of the outer ring is bent and fixed to the side wall of the inner ring. The clamping device consists of a clamping head and a clamping ear. The clamping ear is fixedly connected to one side of the clamping head and inserted into the gap between the outer ring and the inner ring on the transparent cap.

[0008] Furthermore, the chuck is provided with a plurality of rollers arranged in parallel, and the rollers rotate on the side of the outer ring. A clamping hole is provided in the chuck which passes through the chuck from top to bottom, and an internal thread is provided in the clamping hole. An elastic silicone gasket is provided on the upper side of the internal thread in the clamping hole. The chuck is a single chuck or a double chuck.

[0009] Furthermore, a wire passing hole is provided on the side wall of the bending portion of the outer ring, and a wire binding hole is provided on the clamping ear.

[0010] Furthermore, a fixing piece is provided on the lower side of the inner ring side surface between the bent side walls of the outer ring, and a wire tube hole is provided on the fixing piece.

[0011] Furthermore, the control device includes a wire tube and a handle, the wire tube is clamped in the wire tube hole, and the handle is connected to the lower side of the wire tube.

[0012] Furthermore, the handle is composed of a handle housing and an intermediate shaft installed in the handle housing. The intermediate shaft rotates on the handle housing and slides axially in the handle housing.

[0013] Furthermore, two parallel ratchet wheels are provided on the intermediate shaft, and two internal meshing gears corresponding to the parallel ratchet wheels are provided in the handle housing.

[0014] Furthermore, the two internally meshing gears and the two ratchets are respectively located on both sides of the handle and are meshed on the same side. Only one of the two ratchets can mesh with the corresponding internally meshing gear at the same time.

[0015] Furthermore, traction ropes are fixedly connected to both sides of the wire binding hole, and the traction ropes on both sides pass through the wire holes and wire tubes respectively and are connected to the internal meshing gear of the handle housing.

[0016] Furthermore, the clamping device is replaced by a support sleeve, and the support sleeve is composed of three layers of rubber rings connected in sequence, which are, from bottom to top, the first layer of rubber ring, the second layer of rubber ring, and the third layer of rubber ring. The third layer of rubber ring is provided with a fixing plate, and the first layer of rubber ring is provided with a fixing hole that can cooperate with the fixing plate. The third layer of rubber ring is provided with a bracket, and the bracket is composed of a number of independent support frames distributed in an annular manner in the third layer of rubber ring. When the bracket is not in use, the several independent support frames of the bracket are in a retracted state. When the support sleeve is in use, the second layer of rubber ring remains in the gap between the inner ring and the outer ring, the first layer of rubber ring is folded upward to the outside of the outer ring, and then the third layer of rubber ring is folded downward. The fixing plate on the third layer of rubber ring is inserted into the fixing hole of the first layer of rubber ring, and the bracket is opened.

[0017] Beneficial effects

[0018] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0019] The technical solution provided by the present invention comprises a transparent cap, a clamping device, and a control device. The transparent cap has an inner and outer ring structure, the clamping device is mounted on the outer ring of the double-ring transparent cap, and the control device is connected to the transparent cap. The present invention can be used in conjunction with endoscope-assisted surgical procedures, helping doctors more conveniently operate surgical instruments, thereby reducing surgical difficulty, shortening operative time, and alleviating stress on doctors and pain on patients during surgery. Furthermore, due to the unique structure of the transparent cap, the present invention is multifunctional and adaptable to different surgical needs, with strong usability.

[0020] By pulling the clamping device through the control device, the angle adjustment of the external surgical auxiliary instrument can be achieved. The clamping device can also additionally fix the surgical instrument. The rotation function facilitates the control of the operating angle of the auxiliary instrument. The clamp and handle have a self-locking function, which reduces the difficulty of operation. The detachable parts increase the practicality of the transparent cap. The inner and outer ring structural design of the transparent cap can add many additional functions to the transparent cap, increasing the functionality of the transparent cap. Different clamp designs can achieve different surgical effects, and the silicone sleeve with a support arm can expand the folds of the inner wall of the intestine, greatly increasing the usability of the transparent cap. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of embodiment 1 of the present invention;

[0022] Figure 2 Schematic diagram of the structure of the transparent cap according to embodiment 1 of the present invention;

[0023] Figure 3 Schematic diagram of a clamping device according to embodiment 1 of the present invention;

[0024] Figure 4 is a cross-sectional view of a clamping device according to embodiment 1 of the present invention;

[0025] Figure 5 This is a schematic diagram of a multi-chuck according to Example 1 of the present invention;

[0026] Figure 6 This is a schematic diagram of a wire tube according to embodiment 1 of the present invention;

[0027] Figure 7 This is a schematic diagram of a handle of a control device according to embodiment 1 of the present invention;

[0028] Figure 8 Schematic diagram of the intermediate shaft and ratchet wheel of Example 1 of the present invention;

[0029] Figure 9 This is a cross-sectional view of the handle of Example 1 of the present invention with the intermediate shaft removed;

[0030] Figure 10 Schematic diagram of a support sleeve according to embodiment 1 of the present invention;

[0031] Figure 11 This is a schematic diagram of a bottom perspective of a support sleeve according to Example 1 of the present invention;

[0032] Figure 12 This is a schematic diagram of the use of the support sleeve of Example 1 of the present invention. DETAILED DESCRIPTION

[0033] In order to make the technical solution of the present invention clearer, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] Example 1

[0035] Combined with attachment Figure 1-12 A rotatable transparent cap for an endoscope is mainly used to directly adjust the position of surgical instruments during surgery, such as the position of a biopsy forceps or a hemostatic clip on an endoscope, without having to rotate the endoscope, or without having to remove the endoscope during surgery to adjust the position of the biopsy forceps or the hemostatic clip, thereby adjusting the position of the endoscope. The cap comprises a transparent cap 1, a clamping device 2, and a control device 3. The clamping device 2 is mounted on the transparent cap 1, and the control device 3 is also mounted on the side of the clamping device 2. The control device 3 controls the movement of the clamping device 2 on the transparent cap 1 through a connecting line, thereby realizing the position adjustment of the clamping device 2 on the transparent cap 1.

[0036] The transparent cap 1 is the basic structure of the device. The transparent cap 1 consists of an inner ring 11 and an outer ring 12. The outer ring 12 is sleeved on the outside of the inner ring 11. The inner ring 11 has a cylindrical shell structure. The outer ring 12 is a partial cylindrical structure. The outer ring 12 is an incomplete cylinder. A notch is provided on the outer ring 12. The side wall of the outer ring 12 is directly connected to the side wall of the inner ring 11 at the notch position of the outer ring 12. A fixing part 15 is also provided at the bottom of the inner ring 11 at the notch position of the outer ring 12.

[0037] An equidistant gap is provided between the inner ring 11 and the outer ring 12. The outer ring 12 is fixed to the inner ring 11 by bending the side walls on both sides of the gap toward the inner ring 11 and connecting them to the side walls of the inner ring 11 to form a stable integrated structure.

[0038] The gap provided between the outer ring 12 and the inner ring 11 is used for installing the clamping device 2 , and the clamping device 2 can be stuck in the gap between the outer ring 12 and the inner ring 11 , thereby realizing the movement of the clamping device on the outer ring 12 .

[0039] The gap in the outer ring 12 is used to provide space for installing the control device 3. The smaller the gap in the outer ring 12 is, the better, as long as the control device 3 can be installed without affecting the normal use of the control device 3. The smaller the gap in the outer ring 12 is, the greater the angle at which the clamping device 2 can move circumferentially on the outer ring 12, and the larger the adjustment range of medical staff will be, which can meet the use requirements of a larger angle.

[0040] The clamping device 2 consists of a clamping head 21 and a clamping ear 22 extending from the clamping head 21. The clamping ear 22 is fixed on the clamping head 21 and forms an integral structure with the clamping head 21. The clamping ear 22 is formed by bending the top of the clamping head 21 to the side. The top of the clamping ear 22 and the clamping head 21 are fixedly connected. The main part of the clamping ear 22 is parallel to the clamping head 21 and there is a gap between the main part of the clamping ear 22 and the clamping head 21.

[0041] The clamping head 21 of the clamping device 2 is hung on the outer ring 12 of the transparent cap 1 through the clamping ear 22. The clamping ear 22 is inserted into the gap between the inner ring 11 and the outer ring 12. The end of the clamping ear 22 connected to the clamping head 21 is hung on the side wall of the outer ring 12.

[0042] The chuck 21 is also provided with a plurality of rollers 25, which are arranged in parallel on the chuck 21. The rollers 25 are embedded in the chuck 21 and can rotate freely. The rollers 25 are used to reduce the friction of the chuck 21 moving on the outer ring 12. A distance is maintained between the side of the roller 25 and the clamping ear 22, and the rollers 25 rotate on the side of the outer ring 12.

[0043] The lower side of the chuck 21 and the clamping ear 22 are combined with a fixing buckle matching structure, the fixing buckle is used to limit the chuck 21 so that the chuck 21 will not fall off the outer ring 12, the lower side of the clamping ear 22 is provided with a protruding buckle, the lower side of the chuck 21 is provided with a fixing buckle, the lower side of the chuck 21 is provided with a card slot for the sliding of the fixing buckle, an elastic silicone sheet is provided in the card slot, the fixing buckle slides downward in the card slot, the fixing buckle is combined with the protruding buckle, thereby forming a complete ring structure with the chuck 21 and the clamping ear 22, the ring structure of the chuck 21 and the clamping ear 22 is sleeved on the side wall of the outer ring 12, and the chuck 21 will not fall off the outer ring 21 at this time.

[0044] The elastic silicone sheet maintains a continuous stretching force, thereby being able to continuously push the fixing buckle downward. At this time, the fixing buckle can maintain the combined state with the protruding buckle, so that the loop structure formed by the clamping head 21 and the clamping ear 22 cannot be released.

[0045] When it is necessary to release the ring structure formed by the clamp 21 and the clamp ear 22 and remove the clamp 21 from the outer ring 12, it is only necessary to push the fixing buckle upwards, and the fixing buckle slides on the inner side of the slot. At this time, the fixing buckle and the protruding buckle are released from the combined state. At this time, it is only necessary to slightly pull the clamp ear 22 outwards to remove the clamp 21 from the outer ring 12.

[0046] A clamping hole is provided in the chuck 21 which runs through the upper and lower parts. The clamping hole is used to install foreign body clamp tubes and surgical instruments. For example, instruments such as biopsy forceps or hemostatic clamps can be installed and fixed in the clamping hole. An internal thread is provided in the clamping hole, and an elastic silicone gasket 28 is provided on the upper side of the internal thread in the clamping hole. The head of the foreign body clamp tube has an external thread to cooperate with it. The foreign body clamp tube is inserted into the clamping hole. When the internal thread in the clamping hole and the external thread on the foreign body clamp tube come into contact, the foreign body clamp tube is rotated. By compressing the deformation of the silicone gasket, the position of the surgical instrument in the pipeline and the fixation of the extended length can be controlled, which is convenient for the doctor's operation. Since the distance that the instrument needs to move during the operation is small, the movement and fixation of the surgical instrument in the chuck 21 can be satisfied by compressing the elastic silicone gasket 28.

[0047] The clamping head 21 is detachable, and different transparent cap functions can be achieved by designing and installing different clamping heads.

[0048] The chuck 21 can be divided into a single chuck and a multi-chuck. A single chuck has only one clamping hole, while a multi-chuck can have multiple clamping holes, thereby enabling the installation of multiple instruments on a single chuck. The structure of the multi-chuck is the same as that of the single chuck, only the number of clamping holes is increased.

[0049] A wire conduit hole 14 is provided on the fixing piece 15 located below the notch of the outer ring 12 of the transparent head 1 , and the wire conduit hole 14 passes through the fixing piece 15 .

[0050] The control device 3 consists of a handle 31 and a wire tube 32. The wire tube 32 is installed on the transparent head 1. The handle 31 is connected to the end of the wire tube 32. The wire tube 32 is provided with a block for being clamped in the wire tube hole 14. The wire tube 32 can be split into two parts. The wire tube 32 after splitting consists of a block and a tube body. The block passes through the wire tube hole 14. The block part that passes through the wire tube hole 14 and extends out is fixedly combined with the tube body again to form the wire tube 32. The wire tube 32 is used to provide a pipeline structure for installing a traction rope for pulling the clamping device 2 to move on the transparent cap 1. The transparent tube 32 facilitates the handle 31 to control the pulling direction and pulling length of the traction rope.

[0051] The handle 31 connected to the end of the wire tube is the power component of the traction rope. The handle 31 can directly control the pulling direction and pulling length of the traction rope, and is used to control the position of the clamping device 2 on the transparent cap 1 by operating the handle 31.

[0052] A wire binding hole 26 is provided on the clamping ear 22. After the clamping device 2 is installed on the transparent cap 1, the wire binding hole 26 is inserted into the gap between the inner ring 11 and the outer ring 12. At this time, traction ropes in two opposite directions are connected on both sides of the wire binding hole 26. By pulling the traction ropes in different directions, the clamping ear 22 and the clamping head 21 can be driven to move in the pulling direction on the transparent cap 1, thereby realizing the position adjustment of the clamping device 2.

[0053] Wire holes 13 are provided on the wall bodies on both sides of the notch position of the outer ring 12 for connecting the side walls of the inner ring 11. The traction ropes connected to the wire binding holes 26 on the clamping ears 22 are connected to the gap between the inner ring 11 and the outer ring 12, and are led out through the wire holes 13 provided on the side walls on both sides of the notch position of the outer ring 12. A wire tube 32 is installed on the lower side of the notch position of the outer ring 12. The wire tube 32 is provided with channels for moving traction ropes in two different directions. After being led out of the wire holes 13, the traction ropes enter different channels in the wire tube 32 and are connected to the handle 31.

[0054] The handle 31 includes a handle housing 311, in which an intermediate shaft 313 is rotatably provided. One side of the intermediate shaft 313 extends out of the handle housing 311, and a knob 312 is provided on the intermediate shaft 313 on the side extending out of the handle housing 311. The intermediate shaft 313 can not only rotate on the handle housing 311, but also slide in the axial direction on the handle housing 311. A sleeve can be provided between the intermediate shaft 313 and the handle housing 311 to realize the rotation and sliding functions of the intermediate shaft 313. The intermediate shaft 313 is installed inside the sleeve, and the sleeve does not need to slide. The intermediate shaft 313 only needs to slide relative to the sleeve. The sleeve and the intermediate shaft 313 are keyway matched. When the intermediate shaft 313 rotates, the sleeve is synchronously driven to rotate. At this time, the intermediate shaft 313 can be rotated relative to the handle housing 313.

[0055] Two ratchet wheels 314 are arranged in parallel on the intermediate shaft 313 . The two ratchet wheels 314 arranged inside the handle housing 311 are respectively arranged on both sides of the intermediate shaft 313 .

[0056] Inside the handle housing 311 , there are internal meshing gears 315 located on both sides of the intermediate shaft 313 and rotatably engaged with the two ratchet wheels 314 . The internal meshing gears 315 located on both sides are also internal meshing gears with different directions and are set corresponding to the directions of the two ratchet wheels 314 .

[0057] Only one of the two ratchet wheels 314 can engage with a corresponding internal gear 315. The user can select the ratchet wheel 314 on either side to engage with the corresponding internal gear 315 by sliding the intermediate shaft 313. The knob 312 is used to facilitate the user to pull and rotate the intermediate shaft 312. An arc-shaped cross bar is provided on the knob to facilitate the user to apply force with his fingers to pull the intermediate shaft 312.

[0058] The traction line is introduced into the handle 31 through the wire tube 32. The traction lines on both sides introduced into the handle 31 are fixedly wound around the internal gears 315 on both sides. After the internal gears 315 are engaged with their corresponding ratchets 314, the rotation of the intermediate shaft 312 can drive the internal gear 315 on the side engaged with the ratchet 314 to rotate. The rotation of the internal gear 315 pulls the traction line so that the clamping ear 22 drives the clamping head 21 to move in the direction where the traction rope is connected to the rotating internal gear 315, thereby realizing the rotation of the clamping device 2 on the transparent cap 1.

[0059] When the clamping device 2 needs to be moved in the opposite direction, the principle is the same as the above-mentioned pulling principle. The medical staff only needs to pull the intermediate shaft toward the other side through the knob 312. At this time, the ratchet 314 on the other side is engaged with the internal gear 315 on the other side of the handle shell 311. At this time, the intermediate shaft 313 is rotated in the opposite direction, so that the intermediate shaft 313 drives the ratchet 314 to rotate, thereby driving the internal gear 315 on the other side to rotate. At this time, the internal gear 315 on the other side rotates and drives the clamping device 2 to move in the opposite direction.

[0060] The different rotation directions of the internal gears 315 on both sides can achieve the effect of pulling the clamping device 2 to move in different directions. By winding the traction line on the internal gear 315 in different directions, the internal gears 315 on both sides can rotate in different directions to pull the traction rope, thereby further achieving the function of pulling the clamping device.

[0061] In the above technical solution, the clamping device 2 is moved by rotating the intermediate shaft in different directions to pull the traction rope in order to facilitate the medical staff to adjust the direction, which is more in line with the habit of use.

[0062] The traction line is preferably made of nylon rope, which is convenient for doctors to install and disinfect and is not easy to break.

[0063] When the clamping device 2 is not provided on the transparent cap 1, a support sleeve 4 can be installed. The support sleeve 4 is composed of three layers of rubber rings connected in sequence when not in use, namely, a first layer of rubber ring 41, a second layer of rubber ring 42, and a third layer of rubber ring 43 from bottom to top. A fixing piece 431 is provided on the third layer of rubber ring 43. A fixing hole 411 capable of cooperating with the fixing piece 431 is provided in the first layer of rubber ring 41. A bracket 44 is provided in the third layer of rubber ring 43. The bracket 44 is composed of several independent support frames distributed in an annular manner in the third layer of rubber ring 43. The several independent support frames of the bracket are in a retracted state when not in use.

[0064] During use, the first and second rubber rings 41, 42 are first passed through the gap between the inner and outer rings 11, 12. Since the gap between the inner and outer rings 11, 12 is not a complete circle, the first and second rubber rings 41, 42 are also provided with openings corresponding to the notches of the outer ring 12. The second rubber ring 42 is retained in the gap between the inner and outer rings 11, 12, while the first rubber ring 41 is passed through the gap.

[0065] Fold the first rubber ring 41 upward to the outside of the outer ring 12, and then fold the third rubber ring 43 downward. After folding it into place, insert the fixing piece 431 on the third rubber ring 43 into the fixing hole 411 of the first rubber ring 41. At this time, the bracket 44 on the third rubber ring 43 is opened, which can play a better supporting role during surgery.

[0066] The inner ring 11 of the transparent cap 1 can also provide space for the practical use of surgical instruments. The surgical instruments in the inner ring 11 of the transparent cap 1 and the surgical instruments in the clamping device 2 installed in the outer ring 12 can greatly improve the synchronous operability of medical staff. At the same time, the cooperation of multiple instruments can provide personnel with a better field of view and the convenience and accuracy of operation, reducing surgical risks. The clamping device can be rotated during use without the need to exit the endoscope and the transparent cap for adjustment, which can greatly facilitate medical staff to switch between multiple surgical angles during surgery, reduce the number of times the instrument is put in and out, and improve safety.

[0067] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A rotatable transparent cap for an endoscope, characterized in that: It includes a transparent cap, a clamping device, and a control device. The clamping device is installed on the transparent cap, and the control device is connected to the end of the transparent cap. The transparent cap includes an inner ring and an outer ring. The side wall of the outer ring is bent and fixed to the side wall of the inner ring. The clamping device consists of a clamping head and a clamping ear. The clamping ear is fixedly connected to one side of the clamping head and inserted into the gap between the outer ring and the inner ring on the transparent cap; the clamping device is replaced by a support sleeve, and the support sleeve is composed of three layers of rubber rings connected in sequence, which are the first layer of rubber ring, the second layer of rubber ring, and the third layer of rubber ring from bottom to top. The third layer of rubber ring is provided with a fixing piece, the first layer of rubber ring is provided with a fixing hole that can cooperate with the fixing piece, the third layer of rubber ring is provided with a bracket, the bracket is composed of a number of independent support frames distributed in an annular manner in the third layer of rubber ring, and the several independent support frames of the bracket are in a retracted state when the bracket is not in use. When the support sleeve is in use, the second layer of rubber ring is retained in the gap between the inner ring and the outer ring, the first layer of rubber ring is folded upward to the outside of the outer ring, and then the third layer of rubber ring is folded downward, the fixing piece on the third layer of rubber ring is inserted into the fixing hole of the first layer of rubber ring, and the bracket is opened.

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