CN211381666U - High-precision lateral ventricle puncture positioning instrument capable of avoiding secondary injury - Google Patents

Abstract

The utility model discloses a high-precision lateral ventricle puncture orientator capable of avoiding secondary damage, which comprises a base, wherein the base comprises a lower base ring and two arc-shaped parallel guide rails, the guide rails are vertically arranged with the base ring, and the surfaces of the guide rails are provided with scale marks; a guide pipe is arranged between the two guide rails, the head of the guide pipe is clamped with the lower parts of the guide rails, a sliding block is nested on the guide pipe, the lower part of the sliding block is attached to the upper parts of the guide rails, and a pointer matched with the scale marks on the surfaces of the guide rails is arranged on the surface of the sliding block; the catheter is also provided with a locking piece; an opening is formed in one side of the guide pipe, openings matched with the opening of the guide pipe are formed in the sliding block and the locking piece which are arranged on the guide pipe, a sliding door for closing the opening is further arranged on the side wall of the opening of the guide pipe, the radian of the guide rail in the base is 120 degrees, and the scale interval of the scale marks on the surface of the guide rail is-60 to +60 degrees. This lateral ventricle puncture locater can promote maneuverability, increases the precision, avoids the secondary damage, reduces operation steps, reduces the risk that infection and epilepsia take place.

Description

High-precision lateral ventricle puncture positioning instrument capable of avoiding secondary injury

Technical Field

The utility model relates to the technical field of medical equipment, specifically indicate a high accuracy side ventricle puncture locater of avoiding secondary damage.

Background

Ventricular puncture (VC) is an important treatment method for hydrocephalus, and a positioning instrument is mainly used for preoperative positioning of the hydrocephalus. When a lateral ventricle puncture operation is performed, firstly, a piece of cloth is disinfected, then, a hole is drilled at the position of the frontal angle, namely, the position 2cm before the coronal suture and the position 2-3 cm beside the midline, then, a position finder is placed on the hole surface to guide the puncture of a drainage tube, and a guide rail of the position finder is parallel to the coronal plane. After the ventricle is punctured in, because there is the existence of perpendicular adapter on the drainage tube, can't directly take off, need just can take off current puncture appearance after extracting the drainage tube, implant the drainage tube along former puncture route once more, this has increased the operation step undoubtedly, has caused the secondary puncture damage to the brain, has also prolonged operating time simultaneously, increases the risk that infects and epilepsia take place. The slidable scope of the guide rail of current puncture appearance base is great, and on the base of limited width, usable sliding width is less relatively, and the angle that slides certain distance and correspond is great, and the precision is lower relatively, has reduced the maneuverability of doctor in the safety range, has improved the operation risk, needs further improvement urgently.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model aims to provide a can promote doctor's maneuverability, increase guide rail precision and utilization ratio, can avoid the secondary damage again, reduce operation step, reduce the side ventricle puncture locater that infects and epilepsia takes place.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a high-precision lateral ventricle puncture positioning instrument capable of avoiding secondary damage comprises a base, wherein the base comprises a base ring at the lower part and two arc-shaped parallel guide rails, the guide rails are perpendicular to the base ring, and the surfaces of the guide rails are provided with scale marks; a guide pipe is arranged between the two guide rails, the head of the guide pipe is clamped with the lower parts of the guide rails, a sliding block is nested on the guide pipe, the lower part of the sliding block is attached to the upper parts of the guide rails, and a pointer matched with the scale marks on the surfaces of the guide rails is arranged on the surface of the sliding block; the catheter is also provided with a locking piece; an opening is formed in one side of the guide pipe, openings matched with the opening positions of the guide pipe are formed in the sliding block and the locking piece which are arranged on the guide pipe, the drainage pipe arranged in the guide pipe can be taken out through the openings of the guide pipe, the sliding block and the locking piece, a sliding door for closing the opening is further arranged on the side wall of the opening of the guide pipe, the radian of the guide rail in the base is 120 degrees, and the scale interval of the scale mark on the surface of the guide rail is minus 60 to plus 60 degrees.

The theory of operation of this technical scheme does, a locater for use during side ventricle puncture operation, use this locater to carry out side ventricle puncture operation postoperative, because at the pipe, the slider, the retaining member lateral wall all is provided with the opening, therefore, the drainage tube of inserting side ventricle can pass through the pipe, the slider, the opening of retaining member lateral wall, take out from the locater, just so can be under the condition of not extracting the drainage tube, demolish the positioning instrument, avoid the influence of the perpendicular adapter of drainage tube tip, the drainage tube that directly uses with puncture for the first time continues to accomplish side ventricle puncture operation.

In addition, the adjustable angle range of the guide rail is changed from-90 degrees to +90 degrees to-60 degrees to +60 degrees, the guide rail with an unused angle part is removed, and the utilization rate of the guide rail is improved; the slidable angle is adjusted to be-60 to +60 degrees required by a patient, so that the design of the positioning instrument is more in line with the physiological characteristics of the patient and the individuation of the patient is better; but the slidable scope diminishes, makes the security of locater increase, and the success rate grow of puncturing, and then improves doctor maneuverability, guarantees under the unchangeable circumstances of base ring diameter simultaneously, has reduced the height of guide rail, makes the pipe slide the angle that the same distance corresponds on the guide rail and diminishes, and scale interval grow, and then has increased the angle modulation precision of guide rail.

The opening of the catheter can be closed by adding the sliding door in the process of the puncture operation, the drainage tube is prevented from falling out of the catheter, and the opening of the catheter is released after the puncture operation is completed, so that the positioner can be smoothly taken down without pulling out the drainage tube.

In order to better realize the utility model discloses, furtherly, base ring lower part is provided with at least three evenly distributed's supporting legs, and one of them supporting legs is arranged in between two guide rails.

In order to better realize the utility model, further, the conduit comprises a head part, an embedding part, a locking part and an operating part from bottom to top in sequence; bosses are symmetrically arranged at two ends of the head part, the upper surfaces of the bosses are cambered surfaces and are tightly attached to the lower part of the guide rail, and the bosses can slide relative to the guide rail; the embedding part can be embedded with the lower part of the sliding block, so that the sliding block and the guide pipe are relatively fixed; the locking part is matched with the locking piece, so that the catheter and the base are relatively fixed; the operating part extends upwards and is used for adjusting the angle between the guide pipe and the base.

In order to better realize the utility model discloses, furtherly, pipe opening one side is provided with the cavity, and it has the sliding door to settle in the cavity, the sliding door surface is provided with the slip button, the pipe outer wall is provided with and supplies the gliding spout of slip button, pipe opening opposite side is provided with the draw-in groove of joint sliding door.

In order to better realize the utility model, furthermore, the sliding block comprises an upper sliding block and a lower embedded block, and the sliding block and the embedded block are in an integral structure; the lower part of the sliding block is a cambered surface attached to the upper surface of the guide rail, and the outer surface of the sliding block is provided with a pointer matched with the scale marks on the surface of the guide rail; the tabling block is matched with the tabling part of the conduit to fix the slide block and the conduit together.

In order to realize better the utility model discloses, furtherly, the retaining member is for being provided with internal screw thread sleeve, the locking portion of pipe be provided with a plurality of rings of retaining member assorted external screw threads, the retaining member can with the locking portion thread fixed connection of pipe, fixed pipe and base.

In order to better realize the utility model discloses, furtherly, the minimum scale of scale mark is 5 on the guide rail, and wherein 5 single times scale mark is half the line, and 10 multiple scale mark is the full line.

In order to better realize the utility model discloses, furtherly, the material of base, pipe, slider, retaining member is the stainless steel.

In order to better realize the utility model discloses, furtherly, the length of pipe is 40mm, and the internal diameter is 2.6mm ~3.6mm, and the external diameter is 5mm, pipe open-ended width is 1.8mm, the opening width of slider is 1.8mm, and the internal diameter of slider is 5.1mm, the open-ended width of retaining member is 1.8mm, and the internal diameter of retaining member is 5.1 mm.

In order to better realize the utility model discloses, further, the base ring diameter of base is 2cm, and the interval between two parallel guide is 5.1 mm.

Compared with the prior art, the utility model, following advantage and beneficial effect have:

(1) the utility model has the advantages that the openings are arranged on one side of the catheter, the sliding block and the locking piece, so that the puncture instrument can be taken down along the side wall of the drainage tube for pulling out the puncture needle after the openings of the catheter, the sliding block and the locking piece are aligned, thereby avoiding secondary puncture damage, reducing operation, shortening operation time and reducing risks of infection and epilepsia;

(2) the utility model discloses an optimize the structure of base ring, under the unchangeable circumstances of assurance base ring diameter, reduced the guide rail height, make the guide rail slide the angle that certain distance corresponds and diminish, the scale interval grow, and then increased the angle modulation precision of guide rail;

(3) the utility model optimizes the structure of the guide rail in the base, changes the adjustable angle range of the guide rail from-90 degrees to +90 degrees to-60 degrees to +60 degrees, removes the guide rail with an unused angle part and improves the utilization rate of the guide rail; the slidable angle is adjusted to be-60 to +60 degrees required by a patient, so that the design of the positioning instrument is more in line with the physiological characteristics of the patient and the individuation of the patient is better; meanwhile, the slidable range is reduced, so that the safety of the positioning instrument is improved, the puncture success rate is increased, and the operability of doctors is improved;

(4) the utility model discloses a material that the selection stainless steel used as the locater for the setting element possesses high strength, non-deformable, not fragile characteristics, repeatedly usable after wasing the sterilization has reduced precision instruments's consumptive material, has practiced thrift the operation expense for the patient.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic plan view of the present invention;

fig. 2 is a schematic perspective view of the present invention;

fig. 3 is a schematic view of the three-dimensional structure of the utility model after the structures are separated;

FIG. 4 is a schematic perspective view of the base of the present invention;

fig. 5 is a schematic perspective view of the catheter of the present invention;

fig. 6 is a schematic perspective view of the slider of the present invention;

FIG. 7 is a schematic view of the design principle of the middle guide rail of the present invention;

fig. 8 is a schematic plan view of the present invention.

Wherein: 1-base, 11-base ring, 12-guide, 13-support foot, 2-guide, 21-head, 22-jogged part, 23-locking part, 24-operating part, 25-runner, 26-slot, 27-sliding door, 3-sliding block, 31-sliding block, 32-jogged block, 33-pointer, 4-locking piece.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

the main structure of the present embodiment, as shown in fig. 1 to 6, includes a base 1, where the base 1 includes a base ring 11 at a lower portion and two arc-shaped parallel guide rails, the guide rails 12 are perpendicular to the base ring 11, and the surfaces of the guide rails 12 are provided with scale marks; a guide pipe 2 is arranged between the two guide rails 12, the head 21 of the guide pipe 2 is clamped with the lower parts of the guide rails 12, a sliding block 3 is nested on the guide pipe 2, the lower part of the sliding block 3 is attached to the upper parts of the guide rails 12, and a pointer 33 matched with the scale marks on the surfaces of the guide rails 12 is arranged on the surface of the sliding block 3; the catheter 2 is also provided with a locking piece 4; an opening is formed in one side of the catheter 2, openings matched with the opening of the catheter 2 are formed in the sliding block 3 and the locking piece 4 which are arranged on the catheter 2, a drainage tube arranged in the catheter 2 can be taken out through the openings of the catheter 2, the sliding block 3 and the locking piece 4, a sliding door 27 for closing the opening is further arranged on the side wall of the opening of the catheter 2, the radian of the guide rail 12 in the base 1 is 120 degrees, and the scale interval of the scale marks on the surface of the guide rail 12 ranges from minus 60 degrees to plus 60 degrees.

The adjustable angle range of the guide rail is changed from-90 degrees to +90 degrees to-60 degrees to +60 degrees, and as shown in figure 7, the guide rail with a useless angle part is removed, so that the utilization rate of the guide rail is improved; the slidable angle is adjusted to be-60 to +60 degrees required by a patient, so that the design of the positioning instrument is more in line with the physiological characteristics of the patient and the individuation of the patient is better; but the slidable scope diminishes, makes the security of locater increase, and the success rate grow of puncturing, and then improves doctor maneuverability, guarantees under the unchangeable circumstances of base ring 11 diameter simultaneously, has reduced guide rail 12's height, makes the angle that pipe 2 slided same distance on guide rail 12 and corresponds diminish, and scale interval grow, and then has increased the angle modulation precision of guide rail.

In the specific embodiment, as shown in fig. 8, when performing lateral ventricle puncture, after drilling holes with a sterilized drape, the positioning instrument is assembled, i.e. the head of the catheter 2 is placed between the guide rails 12 of the base 1, then the slider 3 is mounted on the catheter 2, and then the base 1 is fixed on the outside of the skull of the lateral ventricle of the human body. Rotate pipe 2, angle regulation, the scale on the pointer 33 point to guide rail 12 of slider this moment, can show pipe 2 pivoted angle, after angular adjustment, through retaining member 4 locking pipe 2, slider 3 and base 1, then use sliding door 27 to seal the pipe 2 opening, under the location of locater, accomplish the operation of puncturing, after the operation of puncturing finishes, with pipe 2, the opening of slider 3 and retaining member 4 one side aligns, and open sliding door 27, release the opening of pipe 2, take out the drainage tube from the opening part, then directly take off the locater from the drainage tube.

Example 2:

this embodiment further defines the structure of the base ring 11 on the basis of the above-mentioned embodiments, as shown in fig. 1 and 4, the lower part of the base ring 11 is provided with at least three evenly distributed supporting feet 13, wherein one supporting foot 13 is placed between two guide rails 12.

Example 3:

in the present embodiment, the structure of the conduit 2 is further limited on the basis of the above embodiments, as shown in fig. 1, 2, 3 and 5, the conduit 2 comprises, from bottom to top, a head portion 21, an engaging portion 22, a locking portion 23 and an operating portion 24; bosses are symmetrically arranged at two ends of the head part 21, the upper surfaces of the bosses are cambered surfaces and are tightly attached to the lower part of the guide rail 12, and the bosses can slide relative to the guide rail 12; the fitting part 22 can be fitted to the lower part of the slider 3 so that the slider 3 and the guide tube 2 are fixed to each other; the locking part 23 is matched with the locking piece 4, so that the catheter 2 and the base 1 are relatively fixed; the operating portion 24 extends upward for adjusting the angle of the guide tube 2 with respect to the base 1. Other parts of this embodiment are the same as those of the above embodiment, and are not described again.

Example 4:

in this embodiment, on the basis of the above embodiments, the structure of the catheter 2 is further limited, as shown in fig. 1, fig. 2, fig. 3, and fig. 5, a cavity is provided at one side of the opening of the catheter 2, a sliding door 27 is disposed in the cavity, a sliding button is disposed on the surface of the sliding door 27, a sliding slot 25 for the sliding button to slide is provided on the outer wall of the catheter 2, and a clamping slot 26 for clamping the sliding door 27 is provided at the other side of the opening of the catheter 2.

In the specific use, when carrying out the puncture operation, in order to avoid the drainage tube to fall out from pipe 2 opening, consequently add the sliding door structure very much, make sliding door 27 follow roll-off in the cavity through promoting the sliding button, and make sliding door 27 side card go into draw-in groove 26, accomplish 2 open-ended of pipe and seal, after the puncture is accomplished, when needing to take off the locater, only need let the sliding button slide at spout 26, make sliding door 27 one side break away from draw-in groove 26, then income cavity, make the opening of pipe 2 expose completely can. Other parts of this embodiment are the same as those of the above embodiment, and are not described again.

Example 5:

in the present embodiment, the structure of the sliding block 3 is further limited on the basis of the above embodiments, as shown in fig. 1, 2, 3 and 6, the sliding block 3 includes an upper sliding block 31 and a lower engaging block 32, and the sliding block 31 and the engaging block 32 are integrated; the lower part of the sliding block 31 is a cambered surface attached to the upper surface of the guide rail 12, and the outer surface of the sliding block 31 is provided with a pointer 33 matched with the scale marks on the surface of the guide rail 12; the fitting block 32 is fitted to the fitting portion 22 of the pipe 2 to fix the slider 3 and the pipe 2 together. Other parts of this embodiment are the same as those of the above embodiment, and are not described again.

Example 6:

this embodiment further defines the structures of the locking member 4 and the locking portion of the catheter 2 on the basis of the above embodiment, as shown in fig. 3 and 5, the locking member 4 is a threaded sleeve provided with an internal thread, the locking portion 23 of the catheter 2 is provided with a plurality of circles of external threads matched with the locking member 4, and the locking member 4 can be in threaded fixed connection with the locking portion 23 of the catheter 2 to fix the catheter 2 with the base 1. Other parts of this embodiment are the same as those of the above embodiment, and are not described again.

Example 7:

in the present embodiment, on the basis of the above embodiments, the scale of the guide rail 12 is further defined, as shown in fig. 1 to 4, the minimum scale of the scale marks on the guide rail 12 is 5 °, wherein the 5 ° single-fold scale mark is a half-line, and the 10 ° multiple scale mark is a full-line. Other parts of this embodiment are the same as those of the above embodiment, and are not described again.

Example 8:

in this embodiment, on the basis of the above embodiments, the material of the positioning apparatus is further limited, and the base 1, the guide tube 2, the slider 3, and the locking member 4 are all made of stainless steel. The stainless steel has the characteristics of high strength, difficult deformation and difficult damage, can be repeatedly used after cleaning and sterilization, reduces the material consumption of precise instruments and saves the operation cost for patients. Other parts of this embodiment are the same as those of the above embodiment, and are not described again.

It is to be understood that the principles and operation of the puncture positioning instrument structure according to one embodiment of the present invention, such as the guide rail 12 and the slide block 31, are well known in the art and will not be described in detail herein.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (8)

1. The high-precision lateral ventricle puncture locator capable of avoiding secondary injury is characterized by comprising a base (1), wherein the base (1) comprises a base ring (11) at the lower part and two arc-shaped parallel guide rails, the guide rails (12) are perpendicular to the base ring (11), and the surfaces of the guide rails (12) are provided with scale marks; a guide pipe (2) is arranged between the two guide rails (12), the head (21) of the guide pipe (2) is clamped with the lower parts of the guide rails (12), a sliding block (3) is nested on the guide pipe (2), the lower part of the sliding block (3) is attached to the upper parts of the guide rails (12), and a pointer (33) matched with scale marks on the surface of each guide rail (12) is arranged on the surface of the sliding block (3); the catheter (2) is also provided with a locking piece (4); an opening is formed in one side of the guide pipe (2), openings matched with the opening of the guide pipe (2) are formed in the sliding block (3) and the locking piece (4) which are arranged on the guide pipe (2), the drainage pipe arranged in the guide pipe (2) can be taken out through the openings of the guide pipe (2), the sliding block (3) and the locking piece (4), a sliding door (27) for closing the opening is further arranged on the side wall of the opening of the guide pipe (2), the radian of the guide rail (12) in the base (1) is 120 degrees, and the scale interval of the scale marks on the surface of the guide rail (12) is minus 60 to plus 60 degrees.

2. A high accuracy lateral ventricle puncture positioning instrument avoiding secondary injuries according to claim 1, characterized in that the lower part of the base ring (11) is provided with at least three evenly distributed support feet (13), wherein one support foot (13) is placed between two guide rails (12).

3. The high-precision lateral ventricle puncture positioning instrument for avoiding the secondary injury as claimed in claim 1 or 2, wherein the catheter (2) comprises a head part (21), an embedding part (22), a locking part (23) and an operating part (24) from bottom to top in sequence; bosses are symmetrically arranged at two ends of the head part (21), the upper surfaces of the bosses are cambered surfaces and are tightly attached to the lower part of the guide rail (12), and the bosses can slide relative to the guide rail; the embedding part (22) can be embedded with the lower part of the sliding block (3) so that the sliding block (3) and the guide pipe (2) are relatively fixed; the locking part (23) is matched with the locking piece (4) so that the catheter (2) and the base (1) are relatively fixed; the operating part (24) extends upwards and is used for adjusting the angle between the conduit (2) and the base (1).

4. A high-precision lateral ventricle puncture locator for avoiding secondary injury according to claim 3, wherein a cavity is arranged at one side of the opening of the catheter (2), a sliding door (27) is arranged in the cavity, a sliding button is arranged on the surface of the sliding door (27), a sliding groove (25) for sliding the sliding button is arranged on the outer wall of the catheter (2), and a clamping groove (26) for clamping the sliding door (27) is arranged at the other side of the opening of the catheter (2).

5. The high-precision lateral ventricle puncture locator for avoiding secondary injury according to claim 4, characterized in that the slide block (3) comprises an upper slide block (31) and a lower embedded block (32), the slide block (31) and the embedded block (32) are in an integral structure; the lower part of the sliding block (31) is an arc surface attached to the upper surface of the guide rail (12), and the outer surface of the sliding block (31) is provided with a pointer (33) matched with the scale marks on the surface of the guide rail (12); the tabling block (32) is matched with the tabling part (22) of the conduit (2) to fix the sliding block (3) and the conduit (2) together.

6. A high-precision lateral ventricle puncture locator for avoiding secondary injury according to claim 5, wherein the locking member (4) is a threaded sleeve provided with an internal thread, the locking part (23) of the catheter (2) is provided with a plurality of circles of external threads matched with the locking member (4), and the locking member (4) can be in threaded fixed connection with the locking part (23) of the catheter (2) to fix the catheter (2) and the base (1).

7. A high accuracy lateral ventricle puncture locator for avoiding secondary injuries as claimed in claim 6, wherein the minimum scale of the graduation marks on the guide rail (12) is 5 °, wherein the 5 ° single scale mark is a half line and the 10 ° multiple scale mark is a full line.

8. The high-precision lateral ventricle puncture locator avoiding the secondary injury as claimed in claim 1 or 2, wherein the base (1), the catheter (2), the slider (3) and the locking piece (4) are all made of stainless steel.

Images