CN211934225U

CN211934225U - Puncture guide rod and puncture device

Info

Publication number: CN211934225U
Application number: CN202020319482.8U
Authority: CN
Inventors: 张少松; 王鹏飞; 刘虹; 吕然博; 朱远红
Original assignee: Weihai Boying Medical Technology Co ltd
Current assignee: Weihai Boying Medical Technology Co ltd
Priority date: 2020-03-16
Filing date: 2020-03-16
Publication date: 2020-11-17
Anticipated expiration: 2030-03-16

Abstract

The utility model discloses a puncture guide rod and puncture device, which comprises a puncture guide pipe, a central connecting disc, a warp thread aligning rod, a weft thread aligning rod and the puncture guide rod, wherein the puncture guide pipe is sleeved on the puncture guide rod, the upper end of the puncture guide rod is vertically and fixedly connected with the center of the central connecting disc, the left side and the right side of the central connecting disc are respectively fixedly connected with the line aligning rods, the front end is provided with a visual aligning slot for weft thread, the visual aligning slot for weft thread is radially arranged, the rear end extends backwards along the central line to form the weft thread aligning rod, two symmetrical rod mirror images are arranged, the symmetrical rod for warp thread is mutually vertical to the weft thread aligning rod, the visual aligning slot for puncture point is arranged on the central line array by taking the central connecting disc central point on the warp thread aligning rod, the visual long hole for weft thread is arranged at the center of the central connecting disc, the visual long hole, the utility model has the advantages of novel structure, convenient processing, low manufacturing cost, rapid positioning of the puncture deviation degree, easy extraction from the medical soft catheter and the like.

Description

Puncture guide rod and puncture device

Technical Field

The utility model relates to the technical field of medical equipment, specific puncture guide bar and piercing depth that says so.

Background

Neurosurgical mid-lateral ventriculo-frontal angle puncture is a common procedure. The key of the operation is that the one-time tube placement is successful in the puncture process, so that the injury to brain tissues during the tube placement can be reduced to the minimum. The lateral ventricles are of irregular geometry and are of varying sizes. The traditional lateral ventricle frontal angle puncture method and positioning are roughly as follows: 2 cm before the coronal suture, 2-2.5 cm beside the midline, and the puncture direction is aligned with the imaginary line of the two external auditory canals and is parallel to the sagittal plane. However, in clinical work, when puncturing is performed by this puncturing method, there is a high puncturing failure rate. The main reason for this is that the distance between the anterior horn of the normal lateral ventricle of the Chinese is (30.80 + -2.19) mm, i.e. the average distance from the midline to the outermost anterior horn is 15.4 + -1.09 mm, the puncture is performed parallel to the sagittal plane at 2 cm lateral to the midline, and the puncture channel is most likely to be located outside the frontal angle of the lateral ventricle. Therefore, in order to improve the success rate of lateral ventricle puncture, the head end of the drainage tube needs to be shifted to the inner side (midline) by 0.5-1 cm in the puncture process.

At present, the operation is performed under imagination in the specific operation process, sometimes the puncture angle and the puncture depth need to be repeatedly adjusted to be successful, and the incidence rate of complications of brain tissue injury, bleeding, unsmooth drainage and the like is increased.

The positioning puncture device using the head-mounted stereotaxic apparatus is time-consuming, labor-consuming, expensive and not suitable for treatment of emergency patients, and a lateral ventricle frontal angle puncture device which is simple in structure, convenient to operate, low in cost, suitable for treatment of emergency patients and capable of being quickly and accurately positioned is urgently needed at present.

Through the search, CN 208492247U discloses a novel utility model patent of a novel ventricular puncture device, and the substantive deficiency of this structure is: the clinical use is inconvenient, the accuracy of the directional positioning is low, and the doctor can not carry out the puncture operation on the patient quickly.

Disclosure of Invention

The utility model aims at solving the defects of the prior art, and providing a puncture guide rod and a puncture device which have novel structure, accurate directional positioning and convenient and quick operation for doctors.

The utility model provides a technical scheme that its technical problem adopted is:

a puncture guide rod comprises a guide rod body and is characterized in that the guide rod body is formed by sequentially circumferentially connecting unit straight edges or arc-shaped edges end to end and axially extending, so that an air gap is formed between the guide rod body and a medical soft catheter sleeved outside the guide rod body in the axial direction, and the effect of facilitating the guide rod body to be quickly inserted into or pulled out of the medical soft catheter is achieved.

The shape that the cross section straight flange of the guide rod body encloses can be quadrangle or be more than five polygons.

The shape enclosed by the arc-shaped edge of the cross section of the guide rod body can be three or flower-shaped enclosed by more than four arcs.

A puncture device is characterized by comprising a puncture guide pipe, a central connecting disc, a warp line symmetric rod, a weft line symmetric rod and the puncture guide rod, wherein the puncture guide pipe is sleeved on the puncture guide rod, the upper end of the puncture guide rod is vertically and fixedly connected with the center of the central connecting disc, the left side and the right side of the central connecting disc are respectively and fixedly connected with the warp line symmetric rod, the front end of the central connecting disc is provided with a weft line visual alignment groove, the rear end of the central connecting disc extends backwards along the central line to form the weft line symmetric rod, the weft line visual alignment groove is radially arranged, the center of the weft line symmetric rod is provided with a weft line visual long hole, the two warp line symmetric rods are arranged in a mirror image mode, the warp line symmetric rods are mutually perpendicular to the weft line symmetric rod, the warp line symmetric rod is provided with puncture point visual holes in a linear array by taking the central, in order to do benefit to when clinical use, through a weft visual slot hole and a weft visual groove visual head's a weft, simultaneously, through warp to the puncture point sight hole visual puncture point on the wire rod, make the utility model discloses can reach the purpose of accurate puncture.

By adopting the structure, the utility model, have novel structure, directional location accuracy, make things convenient for the doctor to fix a position the puncture skew degree fast, extract advantages such as from medical soft catheter easily.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a top view of fig. 1.

Fig. 3 is a bottom view of fig. 1.

Fig. 4 is a perspective view of the present invention.

Fig. 5 is a schematic sectional view of a puncture catheter of example 1 of the present invention.

Fig. 6 is a schematic sectional view of a puncture catheter of the present invention, example 2.

Fig. 7 is a schematic view of the present invention in clinical use.

Fig. 8 is a schematic view showing alignment of the weft visual holes and the weft visual grooves with the center line of the head.

Fig. 9 is a schematic view of the puncturing device of the present invention puncturing at a head with an offset.

Reference numerals: the device comprises a guide rod body 1, a puncture guide tube 2, a central connecting plate 3, a warp thread alignment rod 4, a weft thread alignment rod 5, a weft visual alignment slot 6, a puncture point sight hole 7 and a weft visual long hole.

Detailed Description

The present invention will be described with reference to the accompanying drawings and examples.

As shown in the attached drawings, the puncture guide rod comprises a guide rod body 1 and is characterized in that the guide rod body 1 is formed by sequentially connecting unit straight edges or arc-shaped edges end to end in a circumferential direction and axially extending, so that an air gap is formed between the guide rod body and a medical soft catheter sleeved outside the guide rod body in the axial direction, and the effect of facilitating the guide rod body to be quickly inserted into or pulled out of the medical soft catheter is achieved.

The shape that the cross section straight flange of the guide rod body 1 encloses can be quadrangle or more than five polygons.

The shape enclosed by the arc-shaped edge of the cross section of the guide rod body 1 can be three or flower-shaped enclosed by more than four arcs.

A puncture device is characterized by comprising a puncture guide pipe 2, a central connecting disc 3, a warp aligning rod 4, a weft aligning rod 5 and the puncture guide rod 1, wherein the puncture guide pipe 2 is sleeved on the puncture guide rod 1, the upper end of the puncture guide rod 1 is vertically and fixedly connected with the center of the central connecting disc 3, one side or two sides of the lower part of the puncture guide pipe are provided with through holes (the characteristic is the prior art), the left side and the right side of the central connecting disc 3 are respectively and fixedly connected with warp symmetric rods 4, the front end of the central connecting disc 3 is provided with a weft visual aligning slot 6, the weft visual aligning slot 6 is arranged along the radial direction, the rear end extends backwards along the central line to form the weft aligning rod 5,

the two warp symmetric rods 4 are arranged in a mirror image manner, the warp symmetric rods 4 are vertical to the weft symmetric rods 5, puncture point sight holes 7 are arranged on the warp symmetric rods 4 in a linear array by taking the central point of the central connecting plate 3 as a center,

the woof is equipped with weft visual slot hole 8 to the 5 centers of line pole, the central line that weft visual slot hole 8 and weft visual groove 6 are on same central line to do benefit to when clinical use, through the weft visual slot hole and the weft visual groove a weft of visual head, simultaneously, through the visual puncture point of puncture point sight hole on the warp to the line pole, make the utility model discloses reach the purpose of accurate puncture.

In the clinical use process, the puncture depth is determined by reading the skull 9 CT, if the puncture depth is 6cm below the bone hole, the distance between the guide disc and the bone hole is 30cm, and the puncture offset ratio of the head end of the puncture guide needle to the central connecting disc is 1: and 5, if the head end needs to be deviated by 0.5cm, the guide disc needs to be deviated by 2.5 cm.

Specifically, during puncturing, the midpoint of "+" 10 was confirmed to coincide with the puncture point with a single eye (fig. 8), the position of the eye was kept unchanged, the guide plate was shifted, and the shift of the puncture point was confirmed to be 2.5cm by the center connection plate (fig. 9), and then puncturing was performed.

Claims

1. A puncture guide rod comprises a guide rod body and is characterized in that the guide rod body is formed by sequentially circumferentially connecting unit straight edges or arc-shaped edges end to end and axially extending, so that an air gap is axially formed between the guide rod body and a medical soft catheter sleeved outside the guide rod body.

2. The lancing guide of claim 1, wherein the cross-section of the guide rod body is square or more than five polygons formed by straight sides.

3. The lancing guide of claim 1, wherein the cross-sectional arcuate edges of the guide body define a flower shape defined by three or more arcuate edges.

4. A lancing device comprising a lancing guide tube, a central connection disc, a warp thread-to-thread rod, a weft thread-to-thread rod and a lancing guide rod according to claim 1 or claim 2 or claim 3, the puncture guide rod is sleeved with a puncture guide pipe, the upper end of the puncture guide rod is vertically and fixedly connected with the center of the central connecting disc, the left side and the right side of the central connecting plate are respectively fixedly connected with the warp symmetrical rods, the front end is provided with a weft visual alignment slot, the rear end extends backwards along the central line to form a weft alignment rod, the weft visual alignment grooves are arranged along the radial direction, the weft visual slotted holes are arranged at the centers of the weft alignment rods, the two warp symmetrical rods are arranged in a mirror image manner, the warp symmetric rods are perpendicular to the weft symmetric rods, puncture point sight holes are formed in the warp symmetric rods in a linear array with the central point of the central connecting plate as the center, and the centers of the weft sight long holes and the weft sight grooves are located on the same central line.