Neuroendoscope assembly

Abstract

The utility model discloses a neuroendoscope assembly which comprises a hard outer sleeve, a flexible endoscope and a locking sleeve, and the hard outer sleeve comprises a connecting part and a hard tube body; a first connector for fixing the hard tube body is arranged at the front end of the connecting part, and a clamping part and a limiting part are arranged at the tail end of the connecting part; a space surrounded by the clamping part and the limiting part forms an insertion cavity; the flexible endoscope comprises an inserting part and a flexible catheter; a second connector for fixing the flexible catheter is arranged at the front end of the inserting part; the second connector is matched with the insertion cavity, and a stop block is arranged on the outer wall of the second connector; the locking sleeve is rotatably mounted on the clamping part, the bottom of the inner wall of the locking sleeve is provided with a spigot abutting against the connecting part, and the top of the inner wall of the locking sleeve is provided with a sliding groove and a locking block; and the clamping part is clamped in the sliding groove. According to the neuroendoscope assembly, accurate alignment can be achieved in the inserting process, the flexible endoscope and the hard outer sleeve can be easily fixed and separated, and damage to intracranial tissue is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a neuroendoscopic component. Background Art

[0002] Neuroendoscopic technology is a crucial component of minimally invasive neurosurgery. It expands the surgeon's field of view, making the surgical process more precise and the treatment more effective. Because cranial puncture is required during surgery, a conventional flexible endoscope alone cannot meet this requirement. Therefore, a rigid outer sleeve is added. During surgery, the flexible endoscope and the rigid outer sleeve are connected and inserted together, meeting the puncture requirement. This allows for real-time observation of the intracranial situation and pinpointing the specific location of the lesion.

[0003] The viewing angles of conventional endoscope optical lenses are 0° and 30°. In order to ensure the accuracy and stability of the image during puncture, the flexible endoscope needs to be tightly fixed to the rigid outer sleeve, especially the optical lens of the endoscope needs to fit tightly to the transparent cap, and it also needs to be able to be easily separated after insertion into the skull. However, the existing endoscope components are difficult to plug in, and a lot of force is required to separate the flexible endoscope and the rigid outer sleeve, which can easily damage the tissues in the skull. Especially in the 30° endoscope component, it is difficult to align during plugging, and the optical lens of the endoscope cannot be quickly and tightly fitted to the transparent cap, which greatly affects the efficiency of the operation. Summary of the Invention

[0004] In order to overcome the shortcomings of the above-mentioned existing technologies, the present invention provides a neuroendoscope assembly, including a flexible endoscope and a rigid outer sleeve, which can achieve precise alignment during the plugging process, ensuring that the optical lens of the endoscope fits tightly with the transparent cap at the front end of the rigid outer sleeve, and can also easily fix and separate the flexible endoscope and the rigid outer sleeve, reducing damage to intracranial tissue.

[0005] The utility model is realized through the following technical solutions:

[0006] The cam is secured to a position about 100 meters and has a camming portion for securing the end of the tube to the user, the cam being secured to a position about 100 meters and having a locking portion for locking the end of the tube in a manner similar to that of a conventional cam. Used to limit the translation of the stop block; in this technical solution, the neuroendoscope assembly includes a hard outer tube and a flexible endoscope. During the process of inserting the flexible endoscope into the hard outer tube, the limiting part can accurately guide and position the installation position of the flexible endoscope, so that the optical lens of the endoscope is tightly fitted with the transparent cap at the front end of the hard outer tube. After the second connector of the flexible endoscope is inserted into the plug-in cavity of the hard outer tube, the two are fixed together by rotating the locking sleeve connected to the connecting part of the hard outer tube. They are inserted together during surgery, which not only meets the puncture needs during surgery, but also can observe the intracranial situation in real time during the puncture process and determine the specific location of the lesion. When separating or replacing the flexible endoscope, there is no need to rotate the hard tube body. Only the locking sleeve needs to be rotated to quickly realize the detachment and fixation of the hard outer tube and the flexible endoscope to avoid damage to the intracranial tissue. The entire operation process is fast and convenient, effectively reducing the operation time.

[0007] Preferably, the tail of the plug-in part is provided with a accommodating cavity for installing an optical circuit board, and the accommodating cavity is covered with a cap, and the cap is provided with an anti-slip groove; in this technical solution, the accommodating cavity places the optical circuit board originally placed on the head of the flexible catheter on the plug-in part, saving more space for the metal tube head at the front end of the flexible catheter, further reducing the volume of the metal tube head, and thereby reducing the required diameter of the flexible catheter of the endoscope, effectively enhancing the applicability of the endoscope; the anti-slip groove can increase the friction during contact, making it easier for doctors to operate.

[0008] Preferably, the clamping portion is in an arc-shaped strip structure, and a clamping claw is provided at the upper end of the clamping portion; the clamping claw is clamped in the slide groove, and a groove is provided on the outer edge of the upper end of the clamping claw; in this technical solution, the clamping portion is in an arc-shaped strip structure, and an arc can be formed on both the inner and outer sides of the clamping portion to facilitate the rotation of the locking sleeve, and the locking sleeve can be rotatably connected to the clamping portion under the limiting action of the clamping claw and the stop; the groove can reduce the top area of the clamping claw and the opening width of the upper end of the clamping portion, thereby improving the alignment tolerance of the connecting portion inserted into the locking sleeve and improving the assembly efficiency.

[0009] Preferably, the limiting portion is an arc-shaped strip structure, and a limiting groove is provided in the middle of the upper end; the stop block is adapted to the limiting groove, and the upper and lower ends of the stop block are both arc-shaped structures; in this technical solution, the limiting portion is an arc-shaped strip structure, which can form an arc on both the inner and outer sides of the clamping portion to facilitate the rotation of the locking sleeve; the limiting groove can limit the installation angle of the second connecting portion, so that the optical lens of the endoscope fits tightly with the transparent cap at the front end of the hard outer sleeve; the arc-shaped structure can not only reduce the local stress concentration phenomenon of the stop block and enhance the structural strength of the stop block, but also make the stop block smoother in the process of being inserted into the limiting groove or locked by the locking block.

[0010] Preferably, the two side edges of the limit groove opening are arranged obliquely; the lower end of the locking block is provided with a tapered groove; the top of the limit part can be clamped in the tapered groove; in this technical solution, the two side edges of the limit groove opening are arranged obliquely, which can make the upper end of the limit part present a tapered opening structure, which is convenient for guiding the stop block when the second connector is inserted into the plug-in cavity, so that it can smoothly enter the limit groove, improve the fault tolerance of docking, and make the optical lens of the endoscope and the transparent cap at the front end of the hard outer sleeve align themselves and fit tightly, and this structure makes the top of the limit part present a pit structure with high sides and low middle part, and its top can be clamped in the tapered groove. When the locking sleeve is in the unlocked position, it can also position the locking sleeve so that it will not rotate by itself, which is convenient for the doctor's operation.

[0011] Preferably, the inner wall of the first connector is provided with a first positioning strip for limiting the installation position of the hard tube body; the inner wall of the second connector is provided with a second positioning strip for limiting the installation position of the hard tube body; in this technical solution, the first positioning strip can clearly define the installation angle of the hard tube body, facilitating the assembly and processing of the hard outer sleeve; similarly, the second positioning strip can clearly define the installation angle of the flexible catheter, facilitating the assembly and processing of the flexible endoscope.

[0012] Preferably, a guide groove is provided on the inner wall of the locking sleeve; the guide groove is placed below the slide groove, and the upper edge of the guide groove is arranged obliquely; in this technical solution, the guide groove can clearly define the insertion position of the clamping part, facilitate operation, reduce assembly difficulty, and can reduce the length of the path where the clamping part is pressed, reduce the strain time, and increase the service life of the clamping part.

[0013] Preferably, the clamping parts are symmetrically arranged on the connecting part; the height of the limiting part is less than that of the clamping parts, and is provided between the two clamping parts; in the present technical solution, there are two clamping parts, which are symmetrically arranged on the connecting part, so that the clamping points of the locking sleeve can be distributed more evenly, so as to enhance the reliability of the connection between the locking sleeve and the connecting part; the height of the limiting part is less than that of the clamping part, so that the locking block has space to rotate above the limiting part, so as to achieve the effect of fixed locking or separation.

[0014] Preferably, a metal tube head is provided at the front end of the flexible catheter, and the front end of the metal tube head is arranged obliquely; the front end of the hard tube body is arranged obliquely, adapted to the metal tube head, and provided with a transparent cap; in this technical solution, the metal tube head is used to install optical components, such as optical lenses, LED light sources, etc., and is arranged obliquely, mainly suitable for endoscopes with a viewing angle of 30° or other special angles.

[0015] Preferably, a rubber pad is provided at the end of the second connector; in this technical solution, the rubber pad has a certain resilience, which can alleviate the deformation of the locking block when locking the fixing block, and provide resilience, so that the hard outer sleeve and the flexible endoscope are fixed more tightly.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. The neuroendoscopic assembly includes a hard outer sleeve and a flexible endoscope, which not only meets the puncture needs during surgery, but also can observe the intracranial situation in real time during the puncture process and determine the specific location of the lesion; 2. During the process of inserting the flexible endoscope into the hard outer sleeve, the neuroendoscopic assembly can accurately guide and locate the installation position of the flexible endoscope, so that the optical lens of the endoscope fits tightly with the transparent cap at the front end of the hard outer sleeve, reducing the difficulty of aligning the flexible endoscope with the hard outer sleeve and improving the operation efficiency; 3. When separating or replacing the flexible endoscope, the neuroendoscopic assembly does not need to rotate the hard tube body, but only needs to rotate the locking sleeve to quickly realize the detachment and fixation of the hard outer sleeve and the flexible endoscope to avoid damage to the intracranial tissue. The entire operation process is fast and convenient, which effectively reduces the operation time; 4. The neuroendoscopic assembly has a high degree of integration, and the overall structure is small, simple and beautiful, which is convenient for doctors to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1Schematic diagram of the locking structure of a neuroendoscopic assembly described in Example 1;

[0018] Figure 2 This is a schematic diagram of the clamping structure of a neuroendoscopic assembly described in Example 1;

[0019] Figure 3 Schematic diagram of the structure of the connecting portion in Example 1;

[0020] Figure 4 This is a structural diagram of the plug-in portion described in Example 1;

[0021] Figure 5 This is a schematic structural diagram of the locking sleeve described in Example 1;

[0022] Figure 6 Schematic diagram of the structure of the cap in Example 1;

[0023] Figure 7 This is a structural diagram of the stop block in Example 1 inserted into the limiting groove;

[0024] Figure 8 This is a schematic diagram of the positional relationship between the locking sleeve and the connecting portion in the locked state in Example 1;

[0025] Figure 9 Schematic diagram of the positional relationship between the locking block and the limiting block in the locked state in Example 1;

[0026] Figure 10 This is a schematic diagram of the positional relationship between the locking sleeve and the connecting portion in the open state in Example 1;

[0027] Figure 11 This is a schematic diagram of the positional relationship between the locking block and the limiting block in the open state in Example 1;

[0028] Figure 12 This is a schematic diagram of the installation structure of the first connector and the hard pipe body in Example 1;

[0029] Figure 13 This is a schematic diagram of the installation structure of the second connector and the flexible conduit in Example 1;

[0030] In the figure: 1. hard outer sleeve; 11. connecting part; 111. first connecting head; 112. clamping part; 1121. claw; 1122. groove; 113. limiting part; 1131. limiting groove; 114. first positioning strip; 12. hard tube body; 121. transparent cap; 13. plug-in cavity; 2. locking sleeve; 21. slide groove; 22. locking block; 221. tapered groove; 23. guide groove; 24. stopper; 3. flexible endoscope; 31. plug-in part; 311. second connecting head; 3111. stop block; 3112. second positioning strip; 32. flexible catheter; 321. metal tube head; 33. accommodating cavity; 34. mounting groove; 4. cover cap; 41. anti-slip groove; 5. optical component; 6. rubber pad. DETAILED DESCRIPTION

[0031] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Example 1

[0033] like Figures 1 to 13As shown, a neuroendoscopic assembly includes a hard outer sleeve 1, a flexible endoscope 3 and a locking sleeve 2. The hard outer sleeve 1 includes a connecting portion 11 and a hard tube body 12; the connecting portion 11 is a circular tubular structure made of plastic material, the front end of the connecting portion 11 is provided with a first connector 111 for fixing the hard tube body 12, and the tail end is provided with a clamping portion 112 and a limiting portion 113; the clamping portion 112 has two locations, which are arranged 180° symmetrically on the connecting portion 11, so that the clamping points of the locking sleeve are distributed more evenly, so as to enhance the reliability of the connection between the locking sleeve and the connecting portion; the height of the limiting portion 113 is small At the height of the clamping portion, it is arranged between the two clamping portions 112, so that the locking block has space to rotate above the limiting portion, which has achieved the effect of fixed locking or separation; the clamping portion 112 and the limiting portion 113 are arranged along the inner circumference of the edge of the connecting portion 11, and the space surrounded by the clamping portion 112 and the limiting portion 113 forms a circular plug-in cavity 13; the hard tube body 12 can be made of stainless steel; the flexible endoscope 3 includes a plug-in portion 31 and a flexible catheter 32; the plug-in portion 31 is a circular tubular structure made of plastic material, and the front end of the plug-in portion 31 is provided with a second connector 3 for fixing the flexible catheter 32 11; the second connector 311 is adapted to the plug-in cavity 13, and a stop block 3111 is provided on the outer wall of the second connector 311; the locking sleeve 2 is rotatably mounted on the connecting portion 11, and the bottom of the inner wall of the locking sleeve 2 is provided with a stopper 24 adapted to the connecting portion, and the top is provided with a circular arc-shaped slide 21 and a locking block 22; the arc of the slide 21 is 45°, and the locking block 22 is provided on the edge of one of the slides 21. When the locking sleeve 2 is rotated, the slide 21 can limit the rotation angle of the locking sleeve 2; the clamping portion 112 is clamped in the slide 21; the limiting portion 113 is used to limit the stop block 31 11 rotates in the radial direction, and the locking block 22 is used to limit the axial translation of the stop block 3111; the front end of the hard tube body 12 is arranged at a 30° angle and is provided with a transparent cap 121; the front end of the flexible catheter 32 is provided with a metal tube head 321 for mounting optical components, such as cameras, LEDs, etc., and the front end of the metal tube head is arranged at a 30° angle; the end of the second connecting head 311 is provided with a rubber pad 6, which has a certain resilience, which can alleviate the deformation of the locking block 22 when fixing the stop block 3111 and provide resilience, so that the hard outer tube and the flexible endoscope are fixed more tightly;The neuroendoscopic assembly includes a rigid outer tube 1 and a flexible endoscope 3. After the second connector 311 of the flexible endoscope 3 is inserted into the insertion cavity 13 of the rigid outer tube 1, the two are fixedly connected together by rotating the locking sleeve 2 connected to the connecting portion of the rigid outer tube 1. During surgery, they are inserted together, which not only meets the puncture needs during surgery, but also allows real-time observation of the intracranial situation during the puncture process to determine the specific location of the lesion. When separating or replacing the flexible endoscope, there is no need to rotate the rigid tube body. Only the locking sleeve needs to be rotated to quickly achieve the detachment and fixation of the rigid outer tube and the flexible endoscope to avoid damage to the intracranial tissue. The entire operation process is fast and convenient, effectively reducing the time of the operation.

[0034] Preferably, the tail of the plug-in portion 31 is provided with a receiving cavity 33 for installing an optical circuit board, the outer cover of the receiving cavity 33 is provided with a cap 4, the cap 4 is provided with an anti-slip groove 41, and the bottom of the receiving cavity 33 is provided with a mounting groove 34. The cap is fixed to the outside of the receiving cavity 33 by bonding, and forms a closed space to protect the connecting wires and the circuit board; the anti-slip groove 41 can increase the friction during contact, making it easier for doctors to operate; the clamping portion 112 is an arc-shaped strip structure, and a claw 1121 is provided at the upper end of the clamping portion 112; the claw 1121 is movably clamped in the slide groove 21; the claw 112 1 is provided with a groove 1122 on the outer edge of the upper end, and the groove 1122 can reduce the top area of the claw and the opening width of the upper end of the clamping part, thereby improving the alignment tolerance of the connecting part when inserted into the locking sleeve and improving the assembly efficiency; the limiting part 113 is an arc-shaped strip structure, and a limiting groove 1131 is provided in the middle of the upper end; the stop block 3111 is adapted to the limiting groove 1131; the two side edges of the opening of the limiting groove 1131 are arranged obliquely, so that the upper end of the limiting part 113 has a tapered opening structure, which is convenient for guiding the stop block 3111 when the second connector 311 is inserted into the plug-in cavity 13, so that it can smoothly enter the limiting groove. The positioning groove 1131 improves the fault tolerance of docking, so that the optical lens of the endoscope and the transparent cap at the front end of the hard outer tube are automatically aligned and fit tightly, and this structure makes the top of the limit part present a pit structure with high sides and low middle. The lower end of the locking block 22 is provided with a tapered groove 221. When the locking sleeve 2 is in the unlocked position, its top can be snapped into the tapered groove 221, and the locking sleeve 2 can also be positioned so that it will not rotate by itself, which is convenient for the doctor to operate; the inner wall of the locking sleeve 2 is provided with a guide groove 23; the guide groove 23 is placed below the slide groove, and the upper edge of the guide groove 23 is arranged obliquely, and the guide groove 23 can be clearly The first connector 111 has an inner wall provided with a first positioning bar 114 for limiting the installation position of the hard tube body 12; the second connector 311 has an inner wall provided with a second positioning bar 3112 for limiting the installation position of the hard tube body 12. The first positioning bar can clearly define the installation angle of the hard tube body, and facilitate the assembly and processing of the hard outer sleeve. Similarly, the second positioning bar 3112 can clearly define the installation angle of the flexible catheter 32, and facilitate the assembly and processing of the flexible endoscope.

[0035] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A neuroendoscopic assembly, characterized in that: The invention relates to a flexible endoscope, wherein the rigid outer sleeve comprises a connecting portion and a rigid tube body; the connecting portion is a circular tubular structure, a front end of which is provided with a first connecting head for fixing the rigid tube body, and a tail end thereof is provided with a clamping portion and a limiting portion; the clamping portion and the limiting portion are arranged circumferentially along the inner side of the edge of the connecting portion, and the space surrounded by the clamping portion and the limiting portion forms an inserting cavity; the flexible endoscope comprises an inserting portion and a flexible catheter; the inserting portion is a circular tubular structure, a front end of which is provided with a second connecting head for fixing the flexible catheter; the second connecting head is adapted to the inserting cavity, and a stop block is provided on the outer wall of the second connecting head; the locking sleeve is rotatably mounted on the clamping portion, the bottom of the inner wall of the locking sleeve is provided with a stop adapted to the connecting portion, and the top is provided with a sliding groove and a locking block with a circular arc structure, the locking block being fixed on the side of the sliding groove; the clamping portion is clamped in the sliding groove; the limiting portion is used to limit the rotation of the stop block, and the locking block is used to limit the translation of the stop block.

2. A neuroendoscopic assembly according to claim 1, characterized in that: The tail of the plug-in part is provided with a receiving cavity for installing the optical circuit board. The outer cover of the receiving cavity is provided with a cover cap, and the cover cap is provided with an anti-slip groove.

3. A neuroendoscopic assembly according to claim 1, characterized in that: The clamping portion is in an arc-shaped strip structure, and a clamping claw is provided at the upper end of the clamping portion; the clamping claw is clamped in the sliding groove, and a groove is provided on the outer edge of the upper end of the clamping claw.

4. A neuroendoscopic assembly according to claim 1, characterized in that: The limiting portion is an arc-shaped strip structure, and a limiting groove is provided in the middle of the upper end; the stop block is adapted to the limiting groove, and the upper and lower ends of the stop block are both arc-shaped structures.

5. A neuroendoscopic assembly according to claim 4, characterized in that: The edges on both sides of the opening of the limiting groove are arranged obliquely; the lower end of the locking block is provided with a tapered groove; the top of the limiting part can be snapped into the tapered groove.

6. A neuroendoscopic assembly according to claim 1, characterized in that: The inner wall of the first connector is provided with a first positioning strip for defining the installation position of the hard tube body; the inner wall of the second connector is provided with a second positioning strip for defining the installation position of the hard tube body.

7. A neuroendoscopic assembly according to claim 1, characterized in that: A guide groove is provided on the inner wall of the locking sleeve; the guide groove is placed below the sliding groove, and the upper edge of the guide groove is arranged obliquely.

8. A neuroendoscopic assembly according to claim 1, characterized in that: There are two clamping parts, which are symmetrically arranged on the connecting part; the height of the limiting part is smaller than that of the clamping part, and is arranged between the two clamping parts.

9. A neuroendoscopic assembly according to claim 1, characterized in that: The front end of the flexible conduit is provided with a metal pipe head, which is arranged obliquely; the front end of the hard pipe body is arranged obliquely, adapted to the metal pipe head, and provided with a transparent cap.

10. The neuroendoscopic assembly according to claim 1, characterized in that: A rubber pad is provided at the end of the second connector.

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