CN219127920U - Support guide wire for cerebral ventricle external puncture drainage and cerebral ventricle external puncture drainage device - Google Patents

Abstract

The present disclosure relates to a support guidewire for extra-ventricular puncture drainage and an extra-ventricular puncture drainage device, wherein the support guidewire comprises (10): a main body rod (1) having an elongated rod shape; and a fixing head (2) connected to one end of the main body rod (1) in the length direction, wherein one end of the fixing head (2) away from the main body rod (1) is a sharp end configured to insert a plug (41) of the front end of the drainage tube (4) from the drainage tube (4) so as to be fixed to the drainage tube (4).

Description

Support guide wire for cerebral ventricle external puncture drainage and cerebral ventricle external puncture drainage device

Technical Field

The disclosure relates to the technical field of medical instruments, and in particular relates to a supporting guide wire for extracellular puncture drainage and an extracellular puncture drainage device.

Background

Hypertensive cerebral hemorrhage is a disease with higher mortality and disability rate in cerebrovascular diseases. High mortality and disability rate diseases such as hypertensive cerebral hemorrhage are seriously threatening the health of the state of the art. Therefore, the enhancement of primary and secondary prevention of cerebrovascular diseases is the primary task of all levels of hospitals, and the improvement of the clinical treatment capacity and level of spontaneous cerebral hematoma is the secondary task. There are a number of intracranial tumor patients, and the incidence of brain tumors is high. These conditions are prone to produce significant amounts of extra-ventricular drainage surgery.

When the external drainage of the ventricle is carried out, a drainage catheter which enters the cranium is needed to be placed so as to drain redundant blood cerebrospinal fluid or blood clots, so that a hole is drilled on the cranium to be placed into the ventricular drainage tube, and a supporting guide wire is needed to be placed in the drainage tube for smoothly placing the drainage tube so as to strengthen the rigidity of the drainage tube; after the drainage tube is put in place, the supporting guide wire is pulled out. However, in the actual operation process, it is found that accidental injury may occur to the supporting guide wire during use, and the safety is low.

Disclosure of Invention

The disclosure provides a support guide wire for ventricular external puncture drainage and a ventricular external puncture drainage device, which can improve the safety of a catheter during ventricular external puncture drainage.

According to an aspect of the present disclosure, there is provided a support guidewire for drainage of ventricular extra-puncture, comprising:

a main body rod in a slender rod shape; and

the fixed head is connected to one end of the main body rod along the length direction, one end of the fixed head, which is far away from the main body rod, is a sharp end, and the sharp end is configured to be inserted into a plug at the front end of the drainage tube from the drainage tube so as to be fixed on the drainage tube.

In some embodiments, the outer diameter of the fixed head is generally smaller than the outer diameter of the body stem.

In some embodiments, the fixing head has a convex section in a middle region in a length direction, and outer diameters of portions of the fixing head located at both sides of the convex section are smaller than the outer diameters of the convex section.

In some embodiments, the fixed head comprises in length: the connecting section, protruding section and insert the section, protruding section is connected between connecting section and insert the section, and connecting section is connected with the main part pole, inserts the section and gradually reduces from the one end of connecting protruding section to the free end to form sharp-pointed end.

In some embodiments, the outer wall of the connecting section is curved in a lengthwise direction that is concave inward.

In some embodiments, the outer wall of the raised section is curved in a lengthwise direction that projects outwardly.

In some embodiments, the support guidewire for extra-ventricular puncture drainage further comprises:

the first hand piece comprises at least three holding parts, wherein the at least three holding parts are connected to one end of the main body rod, which is far away from the fixed head, and are arranged at intervals along the circumferential direction of the main body rod, and an accommodating space is formed between every two adjacent holding parts.

In some embodiments, the first hand piece comprises two groups of holding parts, each group of holding parts comprises two holding parts which are oppositely arranged, and the holding parts are semicircular bending rods.

In some embodiments, the free end of the sharp end is blunt-tipped.

According to another aspect of the present disclosure, there is provided a drainage device comprising:

the front end in the drainage tube is provided with a plug, and the side wall of the drainage tube is provided with a through hole; and

the supporting guide wire for the ventricular extrapuncture drainage of the embodiment at least partially penetrates into the drainage tube, and the sharp end is inserted into the plug.

The support guide wire for the extracellular puncture drainage can be used for operation of neurosurgery requiring extracellular drainage and intracranial hematoma drainage catheter placement, and after a patient drills a hole on the skull, the support guide wire is placed in a drainage tube, so that the support guide wire can play a role in supporting the drainage tube and increasing the placement rigidity of the drainage tube; moreover, the sharp end of the fixed head is inserted into the plug at the front end of the drainage tube, the positions of the sharp end and the front end of the drainage tube are kept relatively stable, the front end of the support guide wire can be prevented from sliding out from the through hole of the drainage tube in the tube placing process, the drainage tube is stably supported, the smooth placement of the drainage tube is ensured, and the operation of the neurosurgery placement drainage catheter is safe and reliable.

Drawings

In order to more clearly illustrate the embodiments of the present disclosure or the solutions in the prior art, the drawings that are required for the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present disclosure, and that other drawings may be obtained according to these drawings without inventive faculty for a person skilled in the art.

Fig. 1 is a front view of some embodiments of a support guidewire for extra-cerebral puncture drainage of the present disclosure.

Fig. 2 is a perspective view of some embodiments of a support guidewire for extra-cerebral puncture drainage of the present disclosure.

Fig. 3 is a schematic view of the structure of a fixed head of a support guidewire for extra-cerebral puncture drainage according to the present disclosure.

FIG. 4 is a schematic structural view of some embodiments of a drainage tube.

Fig. 5 is an enlarged view at I of fig. 4.

Fig. 6 is a front view of some embodiments of an outdoor puncturing drainage device of the present disclosure.

Fig. 7 is an enlarged view at II of fig. 6.

Description of the reference numerals

10. Supporting the guide wire; 1. a main body lever; 2. fixing the head; 21. a connection section; 22. a convex section; 23. an insertion section; 3. a first hand piece; 3A, a holding part; 31. a ring member; 4. a drainage tube; 41. a plug; 42. a through hole; 43. a closure.

Detailed Description

The following description of the technical solutions in the embodiments of the present disclosure will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present disclosure, and it is apparent that the described embodiments are only some embodiments of the present disclosure, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses. Based on the embodiments in this disclosure, all other embodiments that a person of ordinary skill in the art would obtain without carrying out the inventive task are within the scope of protection of this disclosure.

Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods, and apparatus should be considered part of the specification.

In the description of the present disclosure, it should be understood that the terms "center," "lateral," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present utility model.

In the description of the present disclosure, it should be understood that the use of terms such as "first," "second," etc. for defining components is merely for convenience in distinguishing corresponding components, and the terms are not meant to be construed as limiting the scope of the present disclosure unless otherwise indicated.

The supporting guide wire is used as an auxiliary medical instrument in neurosurgery, and has the functions of supporting and reinforcing the rigidity of the drainage tube and facilitating the placement of the tube. At present, the supporting guide wire known by the inventor adopts a straight rod, the front end is smoothly treated, a drainage tube is inserted into the front end of the drainage tube, and then the head is placed into the drainage position of the hematoma cavity.

The inventor clinically finds that in the process of placing the drainage tube made of soft silica gel into cranium, the front end of the drainage tube can prop against the hard skull cavity or hard tissue, and at the moment, the front end of the drainage tube can be deformed in a skew way due to resistance, so that the front end of the built-in support guide wire can slide out from a through hole on the side wall of the front end of the drainage tube to puncture the brain tissue, and accidental injury can occur. In addition, the direction of the tube can be changed, so that the front end of the drainage tube can not smoothly reach the drainage position of the hematoma cavity, the operation time is prolonged, and the success rate of the operation is reduced.

To address the above-described problems, as shown in fig. 1 to 7, the present disclosure provides a support guidewire for drainage of ventricular extra-puncture, in some embodiments, the support guidewire 10 includes: a body bar 1 and a fixed head 2, wherein the body bar 1 has an elongated rod shape; the fixing head 2 is connected to one end of the body bar 1 in the length direction, and one end of the fixing head 2 away from the body bar 1 is a sharp end configured to be inserted into a plug 41 of the front end of the drainage tube 4 from the drainage tube 4 to be fixed to the drainage tube 4.

Wherein, the cross section of the main body rod 1 can be round, triangular, rectangular or other polygonal, the round main body rod 1 can reduce the damage to the inner wall of the drainage tube 4, and can provide uniform supporting effect on the whole circumference of the drainage tube 4. The supporting guide wire 10 is inserted into the drainage tube 4 from one end of the fixed head 2, and the sharp end is inserted into the plug 41 at the front end of the drainage tube 4. A clearance fit can be adopted between the main body rod 1 and the drainage tube 4 so as to smoothly put the support guide wire 10 into the drainage tube 4.

The supporting guide wire 10 of the embodiment can be used in the operation of neurosurgery requiring the drainage of the ventricle outside and the drainage of intracranial hematoma, after the patient drills on the skull, the supporting guide wire 10 is placed in the drainage tube 4, which can play a role in supporting the drainage tube 4 and increasing the placement rigidity of the drainage tube 4; moreover, the sharp end of the fixed head 2 is inserted into the plug 41 at the front end of the drainage tube 4, the positions of the sharp end and the front end of the drainage tube 4 are kept relatively stable, the front end of the supporting guide wire can be prevented from sliding out of the through hole 42 on the side wall of the drainage tube 4 in the tube placing process, the drainage tube 4 is stably supported, the smooth placement of the drainage tube 4 is ensured, and the operation of the neurosurgery placement of the drainage catheter is safe and reliable.

In the process of placing the drainage tube 4, even if the front end of the drainage tube 4 is propped against the hard skull cavity or hard tissue, the front end of the support guide wire 10 is reliably fixed with the plug 41 of the drainage tube 4, so that the front end of the drainage tube 4 can be prevented from being deformed in a skew way due to resistance, the front end of the built-in support guide wire 10 can be prevented from sliding out of the through hole 42 at the front end of the side wall of the drainage tube 4, the situation that the support guide wire 10 is pricked into brain tissue to cause accidental injury can be avoided, and the safety of the tube placing operation can be improved. In addition, as the drainage tube 4 has better rigidity, the tube placement direction can be kept unchanged, the front end of the drainage tube 4 smoothly reaches the hematoma cavity drainage position, the operation time is shortened, and the success rate of the operation is improved.

In some embodiments, as shown in fig. 3, the outer diameter of the fixed head 2 is entirely smaller than the outer diameter of the body stem 1. Wherein the root of the fixing head 2 may meet the outer side wall of the body bar 1, or the root of the fixing head 2 may be retracted inward with respect to the side wall of the body bar 1, forming a step.

This embodiment can make the fixing head 2 more easily embedded into the plug 41 at the front end of the drainage tube 4 and make the outer edge of the main body rod 1 abut against the plug 41 to make the front end of the supporting guide wire 10 more stably fixed, ensuring smooth insertion into the drainage tube 4.

In some embodiments, as shown in fig. 3, the middle region of the fixing head 2 in the length direction has a convex section 22, and the outer diameters of the fixing head 2 at both side portions of the convex section 22 are smaller than the outer diameters of the convex section 22. For example, the cross section of the fixing head 2 may be circular.

In this embodiment, the outer diameter of the fixing head 2 on the side of the protruding section 22 near the free end is smaller than the outer diameter of the protruding section 22, so that the fixing head 2 can be inserted into the plug 41 more easily and can be pulled out after the tube is placed; the outer diameter of the fixed head 2, which is positioned on one side of the protruding section 22 away from the free end, is smaller than the outer diameter of the protruding section 22, so that the plug 41 can exceed the protruding section 22 when being matched with the fixed head 2, the matched length of the fixed head 2 and the drainage tube 4 is increased, and the matched stability of the head of the support guide wire 10 and the plug 41 of the drainage tube 4 is improved; in addition, the convex section 22 and the plug 41 can form a tight fit, so that the fixed head 2 is prevented from sliding out of the through hole 42 on the side wall of the front end of the drainage tube 4 due to the stress deformation of the soft drainage tube 4.

In some embodiments, as shown in fig. 3, the fixed head 2 includes, in a length direction: the connecting section 21, the convex section 22 and the insertion section 23, the convex section 22 is connected between the connecting section 21 and the insertion section 23, the connecting section 21 is connected with the main body rod 1, and the insertion section 23 tapers from one end to the free end of the connecting convex section 22 to form a sharp end.

Wherein the outer diameter of the connecting section 21 and the insertion section 23 is smaller than the outer diameter of the protruding section 22. The insertion section 23 may be tapered, and the tapered structure is not prone to damage to the plug 41 when inserted into the plug 41 or pulled out of the plug 41. Alternatively, the insertion section 23 may have a stepped shape, or the side wall of the insertion section 23 may have a curved surface such as an arc shape.

The insertion section 23 of this embodiment is tapered to provide guiding function, and is easier to insert into the plug 41 or to pull out from the plug 41 after the tube is placed, so that the tube placement efficiency can be improved.

In some embodiments, the outer wall of the connecting section 21 is curved in a lengthwise direction that is concave inward. In a longitudinal section of the support wire 10, the outer wall of the connecting section 21 has an arc shape, for example, a circular arc shape.

The embodiment can smoothly connect and transition the outer wall of the connecting section 21 and the outer wall of the protruding section 22 so as to reduce the resistance when the fixed head 2 is inserted into the plug 41, so that the fixed head 2 is easier to be inserted into the plug 41, and the plug 41 is prevented from being damaged; moreover, the connection part of the fixed head 2 and the main body rod 1 can form a fillet transition, so that the stress on the connection part of the fixed head 2 and the main body rod 1 is reduced, the fixed head 2 is prevented from bending or damaging when being inserted into the plug 41, the reliability of the tube placement is improved, and the safety of the operation is further improved.

In some embodiments, as shown in FIG. 3, the outer wall of the raised section 22 is curved in a lengthwise direction that projects outwardly. For example, the arcuate surface may be an arcuate surface.

This embodiment can smooth the shape of the protruding section 22 at the position of the maximum outer diameter, can easily insert the fixing head 2 into the plug 41 on the basis of stable fitting of the protruding section 22 and the plug 41, and can also prevent damage to the plug 41.

In some embodiments, as shown in fig. 2, the support guidewire 10 for extra-ventricular puncture drainage further comprises: the first hand piece 3 comprises at least three holding parts 3A, wherein the at least three holding parts 3A are connected to one end of the main body rod 1 far away from the fixed head part 2, and are arranged at intervals along the circumferential direction of the main body rod 1, and an accommodating space is formed between two adjacent holding parts 3A.

Wherein the body bar 1 may be connected to only the first ends of the at least three grip portions 3A, respectively, or the body bar 1 may extend between the at least three grip portions 3A while being connected to the second ends of the at least three grip portions 3A, respectively. At least three gripping portions 3A are circumferentially spaced apart, for example, uniformly spaced apart, to form a pseudo-spherical structure.

At present, a round or small cylindrical table-shaped handle is flat and small in shape, so that an operator cannot grip the handle well, and stability and accuracy of tube placement can be affected.

The embodiment of the present disclosure can make the shape of the first hand piece 3 more stereoscopic by arranging at least three holding portions 3A along the circumferential direction at intervals, the uniformity of the sizes of the positions on the main body rod 1 is better, and an accommodating space is formed between two adjacent holding portions 3A, so that the fingers of an operator can enter the accommodating space, the improvement makes the operator easier to hold, the falling of the first hand piece 3 caused by the smoother first hand piece is prevented, the direction of supporting the guide wire 10 is easier to control, and the stability and accuracy of the tube placement can be improved.

In some embodiments, as shown in fig. 2, the first hand piece 3 includes two sets of holding portions 3A, each set of holding portions 3A includes two holding portions 3A disposed opposite to each other, and the holding portions 3A are semicircular curved bars, and are semicircular outwardly protruding.

Specifically, the first hand piece 3 includes two ring pieces 31, the center lines of the two ring pieces 31 are located in a plane perpendicular to the main body bar 1, and the two ring pieces 31 are disposed to intersect, for example, the ring pieces 31 may be annular, and the intersection angle may be 90 °.

The outer wrapping surface of the first hand piece 3 in this embodiment is spherical, so that the operator can hold the hand piece comfortably, and the fingers can clamp the holding part 3A, so that stable acting force can be applied conveniently, the first hand piece 3 is prevented from being staggered relative to the hand, the tube can be placed smoothly, and the tube placement direction is stable and controllable.

In some embodiments, the free end of the sharp end is blunt-tipped. This structure can improve the safety of the use of the supporting guidewire 10 and prevent the sharp segment from damaging the plug 41 in the drainage tube 4.

Optionally, the supporting guide wire 10 is made of a rigid material, such as medical stainless steel, so that the supporting rigidity of the drainage tube 4 can be improved, bending is not easy to occur when resistance is encountered in the tube placing process, and the stability and accuracy of tube placing can be ensured. To increase the rigidity, the diameter of the body bar 1 may be increased as much as possible depending on the diameter of the drainage tube 4, for example, the diameter of the body bar 1 may be not less than 1.8mm, for example, 1.8mm,1.9mm,2.0mm,2.1mm,2.2mm,2.3mm,2.4mm or 2.5mm.

In addition, the support guidewire 10 of the present disclosure may be re-sterilized for use, which may reduce the cost of use and medical costs to the patient.

Next, as shown in fig. 6 and 7, the present disclosure provides an extracellular puncture drainage device, comprising: the drainage tube 4 and the support guide wire 10 for the extracellular puncture drainage of the embodiment are provided, the front end in the drainage tube 4 is provided with a plug 41, the side wall of the drainage tube 4 is provided with a through hole 42, the support guide wire 10 at least partially penetrates into the drainage tube 4, and the sharp end is inserted into the plug 41.

Specifically, as shown in fig. 4 and 5, the drainage tube 4 has a structure of an elongated tubular structure, the front end of the drainage tube 5 is provided with a plug 41 to form a blind end, the plug 41 has a tapered structure from the main body portion of the drainage tube 5 to the front end, the head is rounded, and the side wall of the plug 41 can be in an arc shape protruding outwards in the radial direction. The bottom surface of the plug 41 within the tube may be concave toward the free end to provide a guide when the sharp end is inserted into the plug 41.

The end of the drainage tube 4 far away from the plug 1 can be provided with a sealing piece 43 to seal the opening of the end of the drainage tube 4, thereby playing a role in sealing. For example, closure member 43 may be a cap that is attachable to the body of drain tube 4 or independent of the body of drain tube 4. When a support guidewire 10 is desired, the drain tube 4 can be held in hand to open the closure member 43 to expose the opening.

As shown in fig. 7, the fixing head 2 of the supporting guide wire 10 is penetrated into the plug 41 by means of the sharp part, the fixing head 2 forms a tight fit with the plug 41, and the protruding section 22 prevents the fixing head 2 from being separated from the plug 41 and further from sliding out of the through hole 42.

When the extracellular puncture drainage device is used, firstly, a patient needing extracellular drainage and intracranial hematoma drainage catheter is drilled on the skull, an operator holds the first hand piece 3 and inserts the first hand piece into the internal cavity of the drainage tube 4, the sharp part of the front end fixed head 2 of the support guide wire 10 is penetrated into the plug 41 of the drainage tube 4, then the operation starts to go to the intracranial catheter, after the front end of the drainage tube 4 reaches a target position, the support guide wire 10 is pulled out, and then the tail part of the drainage tube 4 is connected to the drainage device so as to conduct drainage later.

The ventricular external puncture drainage device of the embodiment can be used for the operation of neurosurgery requiring ventricular external drainage and intracranial hematoma drainage and catheter placement, and after a patient drills a hole on the skull, the supporting guide wire 10 is placed in the drainage tube 4, so that the effects of supporting the drainage tube 4 and increasing the placement rigidity of the drainage tube 4 can be achieved; moreover, the sharp end of the fixed head 2 is inserted into the plug 41 at the front end of the drainage tube 4, the positions of the sharp end and the front end of the drainage tube 4 are kept relatively stable, the front end of the supporting guide wire can be prevented from sliding out of the through hole 42 on the side wall of the drainage tube 4 in the tube placing process, the drainage tube 4 is stably supported, the smooth placement of the drainage tube 4 is ensured, and the operation of the neurosurgery placement drainage catheter is safe and reliable.

The foregoing description of the exemplary embodiments of the present disclosure is not intended to limit the present disclosure, but rather, any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the present disclosure are intended to be included within the scope of the present disclosure.

Claims (10)

1. A support guidewire (10) for extra-ventricular puncture drainage, comprising:

a main body rod (1) having an elongated rod shape; and

the fixed head (2) is connected with one end of the main body rod (1) along the length direction, and one end of the fixed head (2) away from the main body rod (1) is a sharp end, and the sharp end is configured to be inserted into a plug (41) at the front end of the drainage tube (4) from the drainage tube (4) so as to be fixed on the drainage tube (4).

2. The support guidewire (10) for ventricular drainage according to claim 1, characterized in that the outer diameter of the fixed head (2) is entirely smaller than the outer diameter of the main body rod (1).

3. The support guide wire (10) for ventricular extra puncture drainage according to claim 1, wherein the fixing head (2) has a convex section (22) in a middle region in the length direction, and outer diameters of the fixing head (2) at both side portions of the convex section (22) are smaller than the outer diameters of the convex section (22).

4. A support guidewire (10) for extra-ventricular puncture drainage according to claim 3 wherein the fixation head (2) comprises along the length direction: the connecting section (21), protruding section (22) and insert section (23), protruding section (22) connect in between connecting section (21) with insert section (23), connecting section (21) with main body pole (1) is connected, insert section (23) from connect protruding section (22) one end to free end tapering, in order to form sharp-pointed end.

5. The support guidewire (10) for extra-ventricular puncture drainage according to claim 4, wherein the outer wall of the connecting section (21) has an inwardly concave arcuate surface along the length direction.

6. The support guidewire (10) for extra-ventricular puncture drainage according to claim 3 wherein the outer wall of the boss section (22) has an arcuate surface protruding outwardly along the length.

7. The support guidewire (10) for extra-ventricular puncture drainage according to any one of claims 1 to 6, further comprising:

the first hand piece (3) comprises at least three holding parts (3A), wherein the at least three holding parts (3A) are connected with one end of the main body rod (1) far away from the fixed head part (2), the holding parts are arranged along the circumferential interval of the main body rod (1), and an accommodating space is formed between every two adjacent holding parts (3A).

8. The support guidewire (10) for extra-ventricular puncture drainage according to claim 7, wherein the first handpiece (3) comprises two sets of the grip portions (3A), each set of the grip portions (3A) comprising two grip portions (3A) disposed opposite each other, the grip portions (3A) being semicircular curved bars.

9. The support guidewire (10) for extra-ventricular puncture drainage according to any one of claims 1 to 6, wherein the free end of the sharp end is blunt-tipped.

10. An extracellular puncture drainage device, comprising:

the drainage tube (4), the front end in the drainage tube (4) is provided with a plug (41), and the side wall of the drainage tube (4) is provided with a through hole (42); and

the support guidewire (10) for extra-ventricular puncture drainage according to any one of claims 1 to 9, the support guidewire (10) penetrating at least partially into the drainage tube (4) and the sharp end being inserted into the plug (41).

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