Assembly for tissue expansion in neurosurgery department

Abstract

The utility model discloses an assembly for neurosurgical tissue expansion, which comprises an expansion catheter and a lens clamping device, a side wing is arranged on the side edge of the expansion catheter, and the side wing comprises a transition part arranged along the length direction of the expansion catheter; the glasses clamping device comprises an upper clamping body, a lower clamping body and an elastic piece, the upper clamping body comprises an upper clamping part, an upper hinging part and an upper operating part, an arc-shaped groove is formed in the clamping surface of the upper clamping part, and upper hinging plates are arranged on the two sides of the upper hinging part; the lower clamp body comprises a lower clamping part, a lower hinging part and a lower operating part, and a positioning groove is formed in the clamping surface of the lower clamping part; lower hinge plates are arranged on the two sides of the lower hinge part; the upper hinge plate and the lower hinge plate are hinged together, and arc clamping sections are arranged on the edges of the upper hinge plate and the lower hinge plate. According to the assembly for tissue expansion of the neurosurgery department, the endoscope and the expansion catheter can be fixed, so that the endoscope does not need to be manually held for operation in an operation, the operation efficiency is improved, and manpower waste is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of medical instruments, and in particular to a component for neurosurgery tissue expansion. Background Art

[0002] Neuroendoscopic technology is an important part of minimally invasive neurosurgery. It expands the surgeon's field of view, overcomes the visual blind spots of conventional microneurosurgery, and makes the surgical process more delicate and effective.

[0003] Currently, when performing brain hematoma removal in neurosurgery, two people are usually required to work together. After using a dilatation catheter to establish a surgical channel, the doctor is responsible for removing the intracerebral hematoma, and his assistant is responsible for holding the endoscope to ensure that the doctor can observe the surgical situation in real time. In this case, in order to ensure the smooth progress of the operation, the doctor needs to communicate with the assistant frequently to stabilize and adjust the direction or angle of the endoscope to meet the surgical needs. This is not only unfriendly to the doctor's operation, but also increases the operation time and causes a waste of manpower. Summary of the invention

[0004] In order to overcome the deficiencies of the above-mentioned prior art, the utility model provides a component for neurosurgical tissue expansion, which can tightly fix the endoscope and the expansion catheter during the operation, so that there is no need to manually hold the endoscope for operation during the operation, and the doctor can complete the operation independently, which facilitates the doctor's operation, reduces the operation time, improves the efficiency of the operation, and avoids the waste of manpower.

[0005] This is achieved through the following technical solutions:

[0006] The cam is connected with the lower hinge part of the upper hinge part, and the upper hinge part is connected with the lower hinge part of the lower ... An upper arc clamping section and a lower arc clamping section adapted to the endoscope catheter are provided along the edge; the elastic member is fixed between the upper clamp body and the lower clamp body to provide clamping force for the upper clamp body and the lower clamp body; in the present technical scheme, the dilatation catheter is provided with a transition portion on the side, which provides a clamping edge for the lens clamp, thereby ensuring that the clamping surface of the lens clamp is in the length direction of the dilatation catheter, and the side wings and the upper opening edge of the dilatation catheter can limit the lens clamp to prevent it from moving up and down, thereby ensuring the reliability of the fixation of the endoscope catheter; the positioning groove and the arc groove are arranged opposite to each other, so that the transition section of the endoscope catheter and the dilatation catheter can be clamped and fixed tightly together, thereby completely freeing the hands of the doctor and his assistant, thereby greatly improving the efficiency of the operation; the upper arc clamping section and the lower arc clamping section can facilitate the use of the lens clamp alone, and the endoscope catheter can be clamped and fixed by using this arc support section, thereby increasing its applicability.

[0007] Preferably, the elastic member is a torsion spring, and the upper hinge part and the lower hinge part are provided with a limiting plate for fixing the torsion spring, and the limiting plate is provided with a limiting groove adapted to the torsion spring; in this technical solution, compared with the traditional clip, the middle fixed pin is eliminated, the cost is reduced, and the installation process is simple, after the torsion spring is placed, it can be quickly installed by pressing, which saves time and effort and avoids the tedious process of installing the pin.

[0008] Further preferably, an arc support section is provided at the edge of the limit plate near the clamping end; in the present technical solution, the arc support section on the limit plate forms a support in the middle of the catheter clamping section when clamping the endoscope to prevent the catheter from bending and deforming.

[0009] Preferably, a transverse limiting rib is provided on the upper hinge part or the lower hinge part; in the present technical solution, the transverse limiting rib can limit the torsion spring when the torsion spring is installed to prevent the torsion spring from sliding on the hinge part.

[0010] Preferably, the lower hinge plate is provided with a hinge column, and the upper hinge plate is provided with a hinge hole compatible with the hinge column; the end of the hinge column is a sloped structure, and the lower edge of the upper hinge plate is provided with a groove; in the present technical solution, the groove and the sloped structure both expand the opening width at the opening and produce a certain guiding effect, thereby improving the fault tolerance rate during operation and facilitating the hinge column to be clamped in the hinge hole.

[0011] Preferably, the width of the upper clamping portion or the lower clamping portion is the same as the height of the side wing transition portion of the dilatation catheter; in the present technical solution, the overall height of the lens clamp is the same as the height of the side wing transition portion. When the lens clamp is clamped in the transition portion, it is clamped between the side wing and the upper opening edge of the dilatation catheter, thereby limiting its up and down movement.

[0012] Preferably, the front end of the lower clamping portion is provided with a top block for limiting the clamping angle between the upper arc clamping section and the lower arc clamping section, and the tail end is provided with a stop block; the stop block and the top block constitute the two side edges of the positioning groove; the lower arc clamping section is placed between the stop block and the lower clamping portion; in this technical solution, the top block can effectively fix the endoscopic catheter in the arc clamping section while preventing it from excessively squeezing the endoscopic catheter, causing the channel of the endoscopic catheter to shrink and affecting the surgical operation.

[0013] Preferably, a support block for limiting the opening angle of the upper clamp body and the lower clamp body is provided at the tail portion of the upper hinged portion or the lower hinged portion; in the present technical solution, the support block can shorten the operating distance during the clamping process of the upper clamp body and the lower clamp body while ensuring the minimum opening angle of the endoscope catheter entering the arc clamping section, thereby reducing labor intensity and improving operating comfort.

[0014] Preferably, the opening depth of the arc groove is smaller than the diameter of the endoscope catheter, and the difference is between 0.5 and 1 mm; the opening width of the arc groove is equal to the diameter of the endoscope catheter; in the present technical solution, the opening edge of the arc groove is raised, and in the clamped state, the endoscope will fit completely with the arc-shaped part of the lens clamp, and the opening edge of the arc groove can stick to the transition part of the expansion sleeve to avoid twisting of the clamp, so that the lens clamp is basically in a fixed position when clamping and will not move at will, thereby improving the reliability of clamping.

[0015] Preferably, the upper clamping portion is arranged in parallel with the upper operating portion, and the upper operating portion is located below the upper clamping portion; in this technical solution, the shape of the lens clamp has an outward slope relative to the dilatation catheter to avoid blocking the viewing angle and operating space of the dilatation catheter, making it easier for doctors to operate.

[0016] Compared with the prior art, the beneficial effects of the utility model are: 1. The expansion catheter and the lens clamp of the component can fix the endoscope catheter on the expansion catheter during the operation, and will not affect the channel support of the endoscope catheter, so that there is no need to manually hold the endoscope to operate during the operation, and the doctor can complete the operation independently, which is convenient for the doctor's operation, reduces the operation time, improves the efficiency of the operation, and avoids the waste of manpower; 2. The lens clamp in the component cancels the middle fixed pin shaft, reduces the cost, and the installation process is simple. After the torsion spring is placed, it can be quickly installed by pressing, which saves time and effort and avoids the tedious process of installing the pin shaft; 3. The top block at the front end of the lower clamp body in the lens clamp is a component of the positioning groove, which can position the transition section of the expansion catheter, and can effectively fix the endoscope catheter in the arc clamping section, while preventing it from excessively squeezing the endoscope catheter, causing the channel of the endoscope catheter to shrink and affecting the surgical operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a component for neurosurgery tissue expansion described in Example 1;

[0018] Figure 2 is a schematic structural diagram of the dilatation catheter described in Example 1;

[0019] Figure 3 is a schematic diagram of the three-dimensional structure of the lens clamp described in Example 1;

[0020] Figure 4 is a front view structural schematic diagram of the lens clamp described in Example 1;

[0021] Figure 5 It is a structural schematic diagram of the lower clamping body described in Example 1;

[0022] Figure 6 It is a structural schematic diagram of the upper clamping body described in the first embodiment;

[0023] Figure 7 This is a schematic diagram of the structure of the scope clamp in the first embodiment clamping the endoscope catheter alone;

[0024] In the figure: 1, dilatation catheter; 11, side wing; 111, transition part; 12, opening edge; 2, lens clamp; 21, upper clamp body; 211, upper clamping part; 2111, arc groove; 212, upper hinge part; 2121, upper hinge plate; 2122, hinge hole; 2123, upper arc clamping section; 2124, groove; 2125, support block; 213, upper operating part; 22, lower clamp Body; 221, lower clamping part; 2211, positioning groove; 2212, top block; 2213, stopper; 222, lower hinged part; 2221, lower hinged plate; 2222, hinged column; 2223, lower arc clamping section; 2224, transverse limiting rib; 223, lower operating part; 23, elastic member; 24, limiting plate; 25, limiting groove; 26, arc supporting section; 3, endoscope catheter. DETAILED DESCRIPTION

[0025] The following will be combined with the accompanying drawings in this document to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in this document, all other embodiments obtained by ordinary technicians in this field without creative labor are within the scope of protection of the utility model.

[0026] Embodiment 1

[0027] like Figures 1 to 7As shown, a component for neurosurgery tissue expansion includes a dilation catheter 1 and a scope clamp 2. The side of the dilation catheter 1 is provided with a side wing 11, and the side wing 11 includes a transition portion 111 arranged along the length direction of the dilation catheter; the scope clamp 2 includes an upper clamp body 21, a lower clamp body 22 and an elastic member 23, and the upper clamp body 21 includes an upper clamping portion 211, an upper hinged portion 212 and an upper operating portion 213 from front to back. The clamping surface of the upper clamping portion 211 is provided with a clamping portion for positioning the endoscope guide The arc groove 2111 of the tube 3, the upper hinged plate 2121 is provided on both sides of the upper hinged part 212; the lower clamping body 22 includes a lower clamping part 221, a lower hinged part 222 and a lower operating part 223 from front to back, and the clamping surface of the lower clamping part 221 is provided with a positioning groove 2211 adapted to the transition part of the flank of the expansion catheter, and the positioning groove 2211 is arranged opposite to the arc groove 2111; the lower hinged plate 2221 is provided on both sides of the lower hinged part 222; the upper hinged plate 2121 and the lower hinged plate 2221 are hinged together, and the upper hinged plate 2121 and the lower hinged plate 2221 are provided with an upper arc clamping section 2123 and a lower arc clamping section 2223 adapted to the endoscope catheter at the edges near the clamping end; the elastic member 23 is fixed between the upper clamp body 21 and the lower clamp body 22 to provide clamping force for the upper clamp body 21 and the lower clamp body 22; wherein, the dilatation catheter 1 is provided with a transition portion 111 on the side, which provides a clamping edge for the lens clamp 2, and can ensure that the clamping surface of the lens clamp 2 is in the length direction of the dilatation catheter 1, and The side wings 11 of the dilatation catheter 1 and the upper opening edge 12 can limit the clamp to prevent it from moving up and down, thereby ensuring the reliability of fixing the endoscope catheter; the positioning groove 2211 and the arc groove 2111 are arranged opposite to each other, and the transition section between the endoscope catheter and the dilatation catheter can be clamped and fixed tightly together, which can completely free the hands of the doctor and his assistant and greatly improve the efficiency of the operation; the upper arc clamping section 2123 and the lower arc clamping section 2223 can fix the endoscope catheter separately, thereby increasing the applicability of the clamp.

[0028] Preferably, the elastic member 23 is a torsion spring, and the upper hinge portion 212 and the lower hinge portion 222 are provided with a limiting plate 24 for fixing the torsion spring, and the limiting plate 24 is provided with a limiting groove 25 adapted to the torsion spring, and the limiting groove 25 can limit the main part of the torsion spring. Compared with the traditional clamp, the middle fixed pin shaft is eliminated, the cost is reduced, and the installation process is simple. After the torsion spring is placed, the upper clamp body 21 and the lower clamp body 22 can be quickly installed by pressing, which saves time and effort and avoids the tedious process of installing the pin shaft; further, the limiting plate 24 is provided with an arc support section 26 on the edge near the clamping end, and the arc support section 26 is used to clamp the endoscope When the catheter is inserted, a support is formed in the middle of the clamping section of the endoscope catheter to prevent the catheter from bending and deforming; the lower hinged part 222 is provided with a transverse limiting rib 2224, and the transverse limiting rib 2224 can limit the torsion spring when installing the torsion spring to prevent the torsion spring from sliding on the hinged part; the lower hinged plate 2221 is provided with a hinge column 2222, and the upper hinged plate 2121 is provided with a hinge hole 2122 matched with the hinge column 2222; the end of the hinge column 2222 is an inclined structure, and the lower edge of the upper hinged plate 2121 is provided with a groove 2124, and the groove 2124 and the inclined structure are both used to expand the opening width at the opening and produce a certain guide The function is to improve the fault tolerance during operation and facilitate the articulation column 2222 to be clamped in the articulation hole 2122; the upper clamping part 211 and the lower clamping part 221 are at the same height as the transition part 111 of the flank of the expansion catheter. When the lens clamp 2 is clamped in the transition part 111, the flank 11 of the expansion catheter and the upper opening edge 12 are clamped, which can limit its up and down movement; the front end of the lower clamping part 221 is provided with a top block 2212 for limiting the clamping angle of the upper arc clamping section and the lower arc clamping section, and the tail end is provided with a stopper 2213; the stopper 2213 and the top block 2212 constitute the two side edges of the positioning groove 2211; the lower arc clamping section 2223 extends to set the stopper 2 213, the top block 2212 can effectively fix the endoscope catheter in the arc clamping section, and prevent it from over-squeezing the endoscope catheter, causing the channel of the endoscope catheter to shrink and affecting the surgical operation; the tail of the upper hinged part 212 is provided with a support block 2125 for limiting the opening angle of the upper clamp body and the lower clamp body, and the tail of the lower hinged part is also provided with a support block; the support block 2125 can shorten the operating distance during the clamping process of the upper clamp body and the lower clamp body while ensuring the minimum opening angle of the endoscope catheter entering the arc clamping section, reduce labor intensity, and improve the comfort of operation; the opening depth of the arc groove 2111 is less than the diameter of the endoscope catheter 3, and the difference is within 0.5~1mm; the opening width of the arc groove 2111 is equal to the diameter of the endoscope catheter 3, ensuring that when the lens clamp is in the clamping state, the endoscope will be completely fitted with the arc part of the lens clamp, and the opening edge of the arc groove can be attached to the transition part of the expansion sleeve to prevent the clamp from twisting, so that the lens clamp is basically in a fixed position when clamping and will not move at will, thereby improving the reliability of clamping; the upper clamping part 211 is arranged in parallel with the upper operating part 213, and the upper operating part 213 is located below the upper clamping part 211. This structure makes the shape of the lens clamp have an outward slope relative to the expansion catheter, avoiding blocking the viewing angle and operating space of the expansion catheter, and making it easier for doctors to operate. .

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A component for neurosurgery tissue expansion, characterized in that: The invention comprises an expansion catheter and a scope clamp, wherein the side of the expansion catheter is provided with a side wing, and the side wing includes a transition portion arranged along the length direction of the expansion catheter; the scope clamp comprises an upper clamp body, a lower clamp body and an elastic member, wherein the upper clamp body comprises an upper clamping portion, an upper hinged portion and an upper operating portion in sequence from front to back, an arc groove for positioning the endoscope catheter is provided on the clamping surface of the upper clamping portion, and upper hinged plates are provided on both sides of the upper hinged portion; the lower clamp body comprises a lower clamping portion in sequence from front to back , a lower hinged portion and a lower operating portion, the clamping surface of the lower clamping portion is provided with a positioning groove adapted to the transition portion of the flank of the expansion catheter, and the positioning groove and the arc-shaped groove are arranged opposite to each other; lower hinged plates are provided on both sides of the lower hinged portion; the upper hinged plate and the lower hinged plate are hinged together, and the edges of the upper hinged plate and the lower hinged plate near the clamping end are provided with an upper arc clamping section and a lower arc clamping section adapted to the endoscopic catheter; the elastic member is fixed between the upper clamp body and the lower clamp body to provide clamping force for the upper clamp body and the lower clamp body.

2. A component for neurosurgery tissue expansion according to claim 1, characterized in that: The elastic member is a torsion spring. The upper hinge part and the lower hinge part are provided with a limiting plate for fixing the torsion spring. The limiting plate is provided with a limiting groove adapted to the torsion spring.

3. A component for neurosurgery tissue expansion according to claim 2, characterized in that: The edge of the limiting plate close to the clamping end is provided with an arc support section.

4. A component for neurosurgery tissue expansion according to claim 2, characterized in that: The upper hinge part or the lower hinge part is provided with a transverse limiting rib.

5. The component for neurosurgery tissue expansion according to claim 1, characterized in that: The lower hinge plate is provided with a hinge column, the upper hinge plate is provided with a hinge hole matched with the hinge column, the end of the hinge column is an inclined structure, and the lower edge of the upper hinge plate is provided with a groove.

6. A component for neurosurgery tissue expansion according to claim 1, characterized in that: The width of the upper clamping portion or the lower clamping portion is the same as the height of the flank transition portion of the dilatation catheter.

7. A component for neurosurgery tissue expansion according to claim 1, characterized in that: The front end of the lower clamping part is provided with a top block for limiting the clamping angle of the upper arc clamping section and the lower arc clamping section, and the tail end is provided with a stopper; the stopper and the top block constitute the two sides of the positioning groove; the lower arc clamping section is placed between the stopper and the lower clamping part.

8. The component for neurosurgery tissue expansion according to claim 1, characterized in that: A support block for limiting the opening angle of the upper clamping body and the lower clamping body is provided at the tail of the upper hinged part or the lower hinged part.

9. A component for neurosurgery tissue expansion according to claim 1, characterized in that: The opening depth of the arc-shaped groove is smaller than the diameter of the endoscope catheter, and the difference is between 0.5 and 1 mm; the opening width of the arc-shaped groove is equal to the diameter of the endoscope catheter.

10. The component for neurosurgery tissue expansion according to claim 1, characterized in that: The upper clamping portion is arranged in parallel with the upper operating portion, and the upper operating portion is located below the upper clamping portion.

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