CN217408900U - Intracerebral lesion puncture drainage device - Google Patents
Intracerebral lesion puncture drainage device Download PDFInfo
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- CN217408900U CN217408900U CN202221067581.7U CN202221067581U CN217408900U CN 217408900 U CN217408900 U CN 217408900U CN 202221067581 U CN202221067581 U CN 202221067581U CN 217408900 U CN217408900 U CN 217408900U
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Abstract
The utility model belongs to the technical field of medical instrument, especially, an intracerebral lesion puncture drainage device. The puncture drainage device for the intracerebral lesion comprises a drainage component, a first puncture component, a second puncture component and a three-way component, wherein the first puncture component is connected with the drainage component in a first puncture state; when in a second puncture state, the second puncture assembly is connected with the drainage assembly; and when in a drainage state, the three-way component is connected with the drainage component. The utility model discloses a puncture drainage device, because the drainage subassembly first puncture subassembly, second puncture subassembly and tee bend subassembly is the detachable connected mode, and above-mentioned subassembly can not damage easily in the art promptly to when the position dissatisfied of drainage subassembly appears, can extract, utilize this set of puncture drainage system to puncture again, and then save medical cost, alleviate patient's medical burden.
Description
Technical Field
The utility model belongs to the field of medical equipment, especially, an intracerebral lesion puncture drainage device.
Background
When patients suffer from cerebral hemorrhage, hydrocephalus or other cystic intracranial lesions, a minimally invasive puncture operation is often needed to drain hydrocephalus, hematoma and cyst fluid, or medicines are injected into the lesions. In many primary hospitals, the hard channel is used for bare-handed puncture due to the lack of a stereotactic guidance system, and the case that the puncture position is not ideal may exist. The existing hard channel puncture drainage device cannot be reused in the same operation, and due to the fact that the cost of the sleeve and the cost of the drill bit are high, medical expenses are increased, and economic burden of a patient is increased, for example, the CN 201810058316-needle drill integrated intracranial lesion puncture drainage device. In addition, after the puncture is successful, medicines such as hemolytic agents, antibiotics and the like are frequently injected into lesions, the existing puncture drainage device needs to inject the medicines from the top cap, but disinfection, medicine changing and wound dressing are needed each time, the operation is complex, and the workload of a clinician at the front line is greatly increased.
Disclosure of Invention
The utility model discloses aim at solving puncture drainage device and can't used repeatedly, disinfection loaded down with trivial details problem of the process of changing dressings before the drainage stage injection medicine in the puncture stage of same platform operation.
In order to achieve the above object, the utility model mainly provides the following technical scheme:
an intracerebral lesion puncturing drainage device, comprising:
the drainage component comprises a sleeve part and a connecting part, wherein a through hole is formed in the connecting part, the first end of the sleeve part is fixedly connected with the connecting part, an external thread part is arranged on the connecting part, an internal channel of the sleeve part is communicated with the through hole, and the second end of the sleeve part is in a sawtooth shape;
the first puncture assembly is used for puncturing the skull and comprises a first connection matching part, a first drill bit part is arranged on a first surface of the first connection matching part, a power joint is arranged on a second surface of the first connection matching part and used for being connected with a power device, the first drill bit part is cylindrical, a drill bit of the first drill bit part is threaded and can penetrate through and extend out of the sleeve part, an internal thread part is arranged on the first connection matching part, and the first connection matching part is in threaded matching with the connecting part;
the second puncture assembly is used for assisting the drainage assembly to penetrate through brain tissues to reach a lesion part and comprises a second connection matching part, a second drill bit part is arranged on a first surface of the second connection matching part, a handle part is arranged on a second surface of the second connection matching part, the free end of the second drill bit part is in an obtuse circle shape, and the free end of the second drill bit part extends out of the sleeve part;
the three-way assembly comprises a first connecting part, a second connecting part and a third connecting part, wherein an internal thread part is arranged on the first connecting part, the first connecting part is in threaded connection with the connecting part, an elastic sealing block is arranged in the second connecting part, and the third connecting part is used for connecting a drainage tube;
and is configured to: in a first puncture state, the first puncture assembly is connected with the drainage assembly; when in a second puncture state, the second puncture assembly is connected with the drainage assembly; and in the drainage state, the three-way component is connected with the drainage component.
In the above intracerebral lesion puncturing and drainage device, the external thread part comprises a first external thread part and a second external thread part, the first puncturing assembly is connected with the first external thread part, and the three-way assembly is connected with the second external thread part.
In the intracerebral lesion puncture drainage device, the first external thread part is made of metal, the second external thread part is made of plastic, and the first external thread part is arranged on the outer ring of the second external thread part.
The puncture drainage device for the intracerebral lesion further comprises a fixed snap ring, the shape of an inner ring of the fixed snap ring is matched with the shapes of the connecting part and the three-way component, and a positioning convex strip is arranged on the inner side of the fixed snap ring;
in the intracerebral lesion puncture drainage device, a first positioning clamping groove is formed in the outer side of the connecting portion, a second positioning clamping groove is formed in the annular side face of the three-way component, the three-way component is connected with the drainage component in a threaded mode, the first positioning clamping groove is connected with the second positioning clamping groove to form the positioning clamping groove, the fixing clamping ring is sleeved on the connecting portion and the three-way component, the positioning convex strips are arranged in the first positioning clamping groove and the second positioning clamping groove, and therefore the three-way component and the drainage component can be fixedly connected in a detachable mode.
The intracerebral lesion puncture drainage device further comprises a top cap, wherein an internal thread is arranged on the top cap, an external thread is arranged on the outer side of the second connector part, and the top cap is in threaded connection with the second connector part.
In the puncture drainage device for intracerebral lesion, the first drill bit part is made of metal;
in the puncture drainage device for intracerebral lesion, the second drill bit part is made of plastic.
In the puncture drainage device for intracerebral lesion, an elastic sealing ring pad is arranged between the first interface part and the connecting part;
in the puncture drainage device for intracerebral lesion, the elastic sealing block and the elastic sealing gasket are made of silica gel.
In the puncture drainage device for intracerebral lesion, the outer side of the sleeve part is sleeved with a limiting assembly, the limiting assembly is in a circular column shape and comprises a plurality of annular limiting parts and a plurality of annular connecting parts, two adjacent annular limiting parts are connected through the annular connecting parts, and the wall thickness of each annular connecting part is less than or equal to that of the corresponding annular limiting part 1/2;
in the intracerebral lesion puncture drainage device, the inner wall of the limiting component is provided with a group of axially opposite cracking grooves, the cracking grooves are provided with cracking parts, and the cracking parts comprise strip hole parts and connecting strip parts which are arranged at intervals.
In the puncture drainage device for intracerebral lesion, the length of the annular limiting part is 60-120 mm,
in the puncture drainage device for intracerebral lesion, the length of the annular connecting part is 0.8-2 mm,
in the puncture drainage device for intracerebral lesion, the wall thickness of the annular connecting part is 0.1-0.3 mm,
in the puncture drainage device for the intracerebral lesion, the wall thickness of the annular limiting part is 0.5-1 mm.
In the puncture drainage device for intracerebral lesion, the first end of the drainage tube is hermetically sleeved outside the third connector part, and the first end of the drainage tube is provided with the first anti-slip ring;
in the puncture drainage device for intracerebral lesion, the second end of the drainage tube is used for being connected with the current-limiting clamping piece, the second end of the drainage tube is hermetically sleeved at the inlet end of the current-limiting clamping piece, and a second anti-slip ring is arranged at a position close to the second end.
Borrow by above-mentioned technical scheme, the utility model discloses at least, have following advantage:
the embodiment of the utility model provides a puncture drainage device, because the drainage subassembly first puncture subassembly, second puncture subassembly and tee bend subassembly is the detachable connected mode, and above-mentioned subassembly all can the independent utility promptly to under the condition that takes place to damage or pollute at arbitrary subassembly, all can not influence the use of other subassembly.
The above description is only an outline of the technical solution of the present invention, and in order to make the technical means of the present invention more clearly understood and to be implemented in accordance with the content of the specification, the following detailed description will be given of preferred embodiments of the present invention in conjunction with the accompanying drawings.
Drawings
Fig. 1 is a schematic structural view of a drainage assembly of the present invention;
FIG. 2 is a cross-sectional view of the drainage assembly of the present invention;
FIG. 3 is a top view of the drainage assembly of the present invention;
FIG. 4 is a schematic structural view of a first spike assembly of the present invention;
FIG. 5 is a cross-sectional view of a first spike assembly of the present invention;
FIG. 6 is a schematic structural view of a second spike assembly of the present invention;
FIG. 7 is a schematic view of a tee assembly of the present invention;
fig. 8 is another schematic structural view of the tee assembly of the present invention;
figure 9 is a cross-sectional view of the tee assembly of the present invention;
fig. 10 is a schematic structural view of the fixing clip ring of the present invention;
fig. 11 is a schematic structural view of the overcap of the present invention;
FIG. 12 is another schematic structural view of the overcap of the present invention;
fig. 13 is a schematic structural view of the limiting assembly of the present invention;
figure 14 is a cross-sectional view of a stop assembly of the present invention;
fig. 15 is a schematic structural view of the drainage tube of the present invention.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, characteristics and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.
The puncture drainage device for intracerebral lesion shown in fig. 1 to 12 comprises:
the drainage assembly (see fig. 1-4) comprises a sleeve part 11 and a connecting part 12, wherein a through hole 120 is formed in the connecting part 12, a first end of the sleeve part 11 is fixedly connected with the connecting part 12, an external thread part 13 is formed in the connecting part 12, an internal channel of the sleeve part 11 is communicated with the through hole 120, and a second end of the sleeve part is serrated;
a first puncture assembly (see fig. 5 and 6) for puncturing the skull, the first puncture assembly comprising a first connection fitting 21, a first drill bit 22 provided on a first surface of the first connection fitting 21, a power joint 23 provided on a second surface of the first connection fitting 21, the power joint 23 being adapted to be connected to a power unit (in this embodiment, the power unit is an electric drill), the first drill bit 22 being cylindrical, a drill bit of the first drill bit being threaded (in this embodiment, in order to facilitate the first drill bit to pass through the skull, the length of the drill bit is approximately half of the length of the entire first drill bit), the first drill bit 22 being capable of passing through and protruding out of the casing section 11 (the threaded drill bit of the first drill bit 22 and the casing section), an internal threaded section being provided on the first connection fitting 21, the first connection fitting portion 21 is screw-fitted to the connection portion 12;
a second puncture assembly (see fig. 7) for assisting the drainage assembly to pass through the brain tissue to the lesion site, the second puncture assembly comprising a second connection matching part 31, a second drill bit part 32 provided on a first surface of the second connection matching part 31, and a handle part 33 provided on a second surface of the second connection matching part 31 (the user can reach the lesion site by manually operating the second puncture assembly), wherein in order to avoid the damage to the brain tissue, the free end of the second drill bit part is in an obtuse-circular shape, and the free end of the second drill bit part 32 protrudes out of the sleeve part 11;
a three-way assembly (see fig. 8 and 9) including a first connecting portion 41, a second connecting portion 42 and a third connecting portion 43, wherein an internal thread portion is provided on the first connecting portion 41, the first connecting portion 41 is connected with the connecting portion 12 by a thread, an elastic sealing block 420 is provided on the second connecting portion 42, and the third connecting portion 43 is used for connecting a drainage tube;
and is configured to: in a first puncture state, the first puncture assembly is connected with the drainage assembly; when in a second puncture state, the second puncture assembly is connected with the drainage assembly; and when in a drainage state, the three-way component is connected with the drainage component.
In the puncture drainage device for the intracerebral lesion provided by the embodiment, in a specific use process, one of the first puncture assembly, the second puncture assembly and the three-way assembly is connected with the drainage assembly, so that a related use state can be carried out. The specific use states include the following three types: 1) the first puncture state is a state of puncturing the skull, in this state, the first puncture assembly is in threaded connection with the drainage assembly, the electric drill is connected with the first connection matching part 21 of the first puncture assembly, and when the electric drill drives the first puncture assembly to rotate, the drainage assembly is driven to rotate together, so that the drainage assembly and the first puncture assembly can penetrate the skull together; 2) the second puncture state is a state of puncturing the brain tissue, in this state, the second puncture component is connected with the drainage component and penetrates the brain tissue to a lesion part, because the length of the second puncture component is longer than that of the drainage component, the second puncture component and the drainage component are tightly connected, and the tail end of the second puncture component is a blunt end and is firstly contacted with the brain tissue, the saw teeth of the drainage component basically do not generate a cutting effect on the brain tissue; 3) in the drainage state, the three-way component is in threaded connection with the drainage component, in this state, the first connecting port 41 is in threaded sealing connection with the drainage component, the second connecting port 42 is sealed by the elastic sealing block 420, and the puncture drainage device realizes drainage of a lesion part through a drainage tube connected with the third connecting port 43.
After the first puncture state is finished, the first puncture assembly can be taken down, and then the second puncture assembly is replaced to finish the second puncture state; after the second puncture state is completed, the second puncture assembly can be taken down, and then the three-way assembly is replaced. Since the second puncture state is a manual operation by the operator, a relatively blunt head is required to avoid damage to the brain tissue.
The puncture drainage device that this embodiment provided, because drainage component, first puncture component, second puncture component and tee bend subassembly are detachable connected mode, above-mentioned subassembly all can independent utility promptly to under the condition that any one subassembly takes place to damage or pollute, can not influence the use of other subassembly yet. In addition, the components can be reused in the same operation process, and if the aseptic principle and the operation specification are strictly followed, the risk of intracranial infection cannot be increased due to the repeated use of the components of the puncture drainage device.
Further, in the first puncture state (i.e. when puncturing the skull), an electric drill (medical pistol drill) is required to provide power for the puncture drainage device (specifically, the electric drill is connected with the power joint 23, and the power joint 23 is triangular and clamped at the head end of the medical pistol drill.
In this embodiment, the power connector is a triangular prism and is used to be clamped at the head end of the medical pistol drill), since the connection portion of the first puncture assembly and the drainage assembly is only located at the threaded connection position (i.e. the external thread portion 13 on the drainage assembly and the internal thread portion of the first puncture assembly), at this time, the threaded connection portion 12 needs to bear a large force; in the drainage state, the three-way component is in threaded connection with the drainage component only for sealing, so that a large force does not need to be borne. Thus, in order to further optimize the function of each component, the male thread part 13 is divided into a first male thread part 131 and a second male thread part 132, wherein: the first spike assembly is connected to the first externally threaded portion 131 and the tee assembly is connected to the second externally threaded portion 132. By the mode, the phenomenon that the external thread is damaged due to large force in the first puncture state to influence the sealing connection of the three-way component and the drainage component can be avoided.
Further, the first external thread portion 131 is made of metal, the second external thread portion 132 is made of plastic, and the first external thread portion 131 is disposed on an outer ring of the second external thread portion 132. Because a large acting force needs to be applied to the first external thread part, the first puncture assembly is made of metal, and the first puncture assembly and the drainage device bear large acting force. The second external thread portion with the tee bend subassembly is the plastics material, also can realize, the drainage subassembly with the strict sealing connection of tee bend subassembly.
Further, specifically, the metal material is medical stainless steel.
As shown in fig. 1, in the embodiment of the present embodiment, only the embodiment in which the male screw part 13 is divided into two parts (the first male screw part 131 and the second male screw part 132) is shown. As a modified embodiment, the male screw part 13 may be provided with only one region, that is, the male screw part 13 does not distinguish between the first male screw part 131 and the second male screw part 132. As another alternative, the first external thread 131 is disposed at the inner circle of the second external thread 132, that is, the external thread 13 of the drainage assembly can be covered completely after the second external thread 132 is connected to the tee assembly. The specific form of the male thread portion 13 is not a limitation of the technical solution of the present application, and the male thread portion 13 is intended to be connected to different components in different states.
On the other hand, in order to further achieve the sealing of the second connecting port 42, a top cap 60 (see fig. 11 and 12) is further disposed on the second connecting port 42, an internal thread 61 is disposed on the top cap 60, an external thread is disposed on the outer side of the second connecting port 42, and the top cap 60 is in threaded connection with the second connecting port 42.
After unscrewing the hood 60, the cotton swab that dips in the iodophor is simply disinfected, pass through by 1ml syringe second interface portion 42 to the injection medicine in the puncture drainage device of three way connection subassembly, because the use of elasticity sealing block 420 can make second interface portion 42 realize autogenous seal after the injection medicine to hood 60 further strengthens isolated, thereby avoids brain tissue to communicate with the external world through puncture drainage device (in order to reduce the infection).
Since the operation is performed many times during the drainage process, and the second connection part 42 needs to be sterilized and injected with medicine during each operation, there is a high possibility that the threaded connection will slide, so as to avoid the three-way component falling off or being unsealed, a fixing snap ring 51 (see fig. 10) may be sleeved outside the connection part 12 of the three-way component and the drainage component, the inner ring shape of the fixing snap ring 51 matches with the shape of the connection part 12 and the three-way component, a positioning convex strip 52 is arranged inside the fixing snap ring 51, a first positioning snap groove is arranged outside the connection part 12, a second positioning snap groove is arranged on the annular side surface of the three-way component, and after the three-way component and the drainage component are connected by threads, the first positioning snap groove and the second positioning snap groove are connected in a straight line, fixed snap ring 51 suit is in connecting portion 12 with when on the tee bend subassembly, location sand grip 52 is arranged in first location draw-in groove with in the second location draw-in groove, in order to realize the tee bend subassembly with drainage subassembly can dismantle fixed connection. After the three-way assembly and the drainage assembly are installed, the positioning convex strip 52 of the fixed clamping ring 51 is aligned to the positioning clamping groove, so that the fixed clamping ring 51 is installed.
Further, a through hole is provided on the free end of the sleeve part 11 for facilitating drainage of a haematoma, especially in case there is a haematoma around the drainage tube.
In the embodiment provided in fig. 1-3 of this embodiment, 10 first positioning slots are uniformly provided outside the side wall of the connecting portion 12 of the drainage assembly, and fig. 7 and 8 show that 10 second positioning slots are uniformly provided outside the side wall of the three-way assembly, and the number of the positioning protruding strips 52 of the fixing snap ring 51 shown in fig. 10 is 2. Of course, the specific data of the positioning card slot is not limited to this embodiment. The purpose of positioning clamping groove is in order to cooperate with the positioning protrusion, so that the fixed clamping ring 51 is sleeved on the three-way component and the drainage component can not rotate. Thus, in practical implementation, the number of the first positioning card slots may be any number of 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10 or more; correspondingly, the number of the second positioning card slots can be any number of 1, 2, 3, 4, 5, 6, 7, 8, 9 or more than 10; the number of the positioning clamping grooves and the positioning convex strips 52 is not limited to the specific embodiment of the embodiment, and the number of the positioning clamping grooves and the positioning convex strips can be determined by fixing the positions of the three-way assembly and the drainage assembly when the fixed clamping ring 51 is sleeved outside the three-way assembly and the drainage assembly.
Specifically, the first drilling head 22 is made of medical metal; the second bit portion 32 is made of medical plastic.
In order to realize sealing, an elastic sealing gasket is arranged between the first interface part and the connecting part; the elastic sealing block 420 and the elastic sealing gasket are made of silica gel.
Furthermore, in order to conveniently control the puncture depth, a limiting component (see fig. 13 and 14 in particular) is sleeved on the outer side of the sleeve part, before puncture, the limiting component is inserted into the sleeve part of the drainage component, the length of the sleeve part of the drainage component is ensured to be longer than that of the limiting component by about 2cm at the beginning, after the first puncture component is connected, the medical pistol drill provides power, the front end of the sleeve part of the drainage component penetrates through the skull and the dura mater, the medical pistol drill and the first puncture component are taken down, the second puncture component is inserted, then the second puncture component and the drainage component are together powered by the hand of an operator, rotated left and right, and slowly enter the encephalic part until the second puncture component is blocked by the residual limiting component, and the entry is stopped.
Specifically, the length of the drainage assembly entering the skull is equal to (the puncture part length of the drainage assembly-the length of the residual limiting assembly), and the length of the residual drainage assembly is calculated.
Preferably, the length of the drainage assembly into the skull is generally calculated from the pre-operative CT.
The limiting assembly is in a cylindrical shape, the limiting assembly comprises a plurality of annular limiting parts 71 and a plurality of annular connecting parts 72 (in the drawing of the embodiment, the specific situation that the limiting assembly comprises 6 annular limiting parts 71 and 5 annular connecting parts 72 is shown), two adjacent annular limiting parts 71 are connected through the annular connecting parts 72, and the wall thickness of each annular connecting part 72 is less than or equal to that of the 1/2 annular limiting part 71, so that the strength of the limiting assembly can be ensured on one hand, and the limiting assembly can be conveniently cut off or cut off from the annular connecting parts 72; the inner wall of the limiting assembly is provided with a group of axially opposite cracking grooves 70, each cracking groove 70 is provided with a cracking portion 73 (namely, the cracking portion 73 comprises two cracking portions 73, the cracking portions 73 are linear, and the two cracking portions 73 are arranged in parallel), each cracking portion comprises a long hole portion 731 and a connecting strip portion 732 which are arranged at intervals, and each long hole portion 731 is a long opening (in the drawing of the embodiment, each cracking portion 73 comprises 15 long openings).
Preferably, in order to facilitate the rupture of the rupture portion, the connecting strip portion 732 includes a plurality of circular holes continuously formed therein 。
As a modified embodiment, the connecting strip portion 732 may be a connecting portion that does not include a circular hole.
Preferably, the length of the annular limiting part is 60-120 mm,
preferably, the length of the annular connecting part is 0.8-2 mm,
preferably, the wall thickness of the annular connecting part is 0.1-0.3 mm,
preferably, the wall thickness of the annular limiting part is 0.5-1 mm.
The concrete parameter of the spacing portion of above-mentioned annular and annular connecting portion is only for making things convenient for splitting open of spacing subassembly to and facilitate the use, it is not right the utility model discloses a restriction.
Furthermore, the length of each annular limiting part is about 5mm, the length of each annular connecting part is about 1mm, and the limiting assembly is used for shearing the connecting strip part and the annular connecting parts by scissors until the length of the residual drainage assembly is reached.
As shown in fig. 15, the first end of the drainage tube 8 is hermetically sleeved outside the third interface portion, so as to facilitate the sleeving action of the drainage tube and prevent the drainage tube from slipping off during sleeving, and a first anti-slip ring 81 is arranged at the first end of the drainage tube; the second end of the drainage tube is used for being connected with a current-limiting clamping piece, the second end of the drainage tube is hermetically sleeved at the inlet end of the current-limiting clamping piece, and similarly, a second anti-slip ring 82 is arranged at a position close to the second end in order to facilitate the operation of the sleeving process.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any simple modification, equivalent change and modification made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.
Claims (10)
1. The utility model provides an intracerebral lesion puncture drainage device which characterized in that includes:
the drainage component comprises a sleeve part and a connecting part, wherein a through hole is formed in the connecting part, the first end of the sleeve part is fixedly connected with the connecting part, an external thread part is arranged on the connecting part, an internal channel of the sleeve part is communicated with the through hole, and the second end of the sleeve part is in a sawtooth shape;
the first puncture assembly is used for puncturing the skull and comprises a first connection matching part, a first drill bit part is arranged on a first surface of the first connection matching part, a power joint is arranged on a second surface of the first connection matching part and used for being connected with a power device, the first drill bit part is cylindrical, a drill bit of the first drill bit part is threaded and can penetrate through and extend out of the sleeve part, an internal thread part is arranged on the first connection matching part, and the first connection matching part is in threaded matching with the connecting part;
the second puncture assembly is used for assisting the drainage assembly to penetrate through brain tissues to reach a lesion part and comprises a second connection matching part, a second drill bit part is arranged on a first surface of the second connection matching part, a handle part is arranged on a second surface of the second connection matching part, the free end of the second drill bit part is in an obtuse circle shape, and the free end of the second drill bit part extends out of the sleeve part;
the three-way assembly comprises a first connecting part, a second connecting part and a third connecting part, wherein an internal thread part is arranged on the first connecting part, the first connecting part is in threaded connection with the connecting part, an elastic sealing block is arranged in the second connecting part, and the third connecting part is used for connecting a drainage tube;
and is configured to: in a first puncture state, the first puncture assembly is connected with the drainage assembly; when in a second puncture state, the second puncture assembly is connected with the drainage assembly; and when in a drainage state, the three-way component is connected with the drainage component.
2. The intracerebral lesion puncturing and drainage device according to claim 1,
the external screw thread portion includes first external screw thread portion and second external screw thread portion, first puncture subassembly with first external screw thread portion connects, tee bend subassembly with second external screw thread portion connects.
3. The intracerebral lesion puncture drainage device according to claim 2,
the first external thread part is made of metal, the second external thread part is made of plastic, and the first external thread part is arranged on the outer ring of the second external thread part.
4. The intracerebral lesion puncture drainage device according to claim 1, further comprising a fixing snap ring, wherein the shape of the inner ring of the fixing snap ring is matched with the shapes of the connecting part and the three-way component, and a positioning convex strip is arranged on the inner side of the fixing snap ring;
the outer side of the connecting portion is provided with a first positioning clamping groove, the annular side face of the three-way component is provided with a second positioning clamping groove, the three-way component is in threaded connection with the drainage component, the first positioning clamping groove is connected with the second positioning clamping groove to form a positioning clamping groove, when the fixing clamping ring is sleeved on the connecting portion and the three-way component, the positioning convex strip is arranged in the first positioning clamping groove and the second positioning clamping groove, and therefore the three-way component is fixedly connected with the drainage component in a detachable mode.
5. The intracerebral lesion puncturing and drainage device according to claim 1, further comprising a top cap, wherein the top cap is provided with an internal thread, the outside of the second connecting port is provided with an external thread, and the top cap is in threaded connection with the second connecting port.
6. The intracerebral lesion puncture drainage device according to claim 1,
the first drill bit part is made of metal;
the second drill bit part is made of plastic materials.
7. The intracerebral lesion puncture drainage device according to claim 1,
an elastic sealing gasket is arranged between the first interface part and the connecting part;
the elastic sealing block and the elastic sealing gasket are made of silica gel.
8. The intracerebral lesion puncture drainage device according to claim 1,
the limiting component is sleeved on the outer side of the sleeve part and is in a circular-ring-shaped column shape, the limiting component comprises a plurality of annular limiting parts and a plurality of annular connecting parts, two adjacent annular limiting parts are connected through the annular connecting parts, and the wall thickness of each annular connecting part is less than or equal to 1/2;
the inner wall of the limiting assembly is provided with a group of axially opposite cracking grooves, the cracking grooves are provided with cracking portions, and the cracking portions comprise strip hole portions and connecting strip portions which are arranged at intervals.
9. The intracerebral lesion puncture drainage device according to claim 8,
the length of the annular limiting part is 60-120 mm,
the length of the annular connecting part is 0.8-2 mm,
the wall thickness of the annular connecting part is 0.1-0.3 mm,
the wall thickness of the annular limiting part is 0.5-1 mm.
10. The intracerebral lesion puncture drainage device according to claim 1,
the first end of the drainage tube is hermetically arranged outside the third connector part, and a first anti-slip ring is arranged at the first end of the drainage tube;
the second end of the drainage tube is used for being connected with a current-limiting clamping piece, the second end of the drainage tube is hermetically sleeved at the inlet end of the current-limiting clamping piece, and a second anti-slip ring is arranged at a position close to the second end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221067581.7U CN217408900U (en) | 2022-05-06 | 2022-05-06 | Intracerebral lesion puncture drainage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221067581.7U CN217408900U (en) | 2022-05-06 | 2022-05-06 | Intracerebral lesion puncture drainage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217408900U true CN217408900U (en) | 2022-09-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221067581.7U Active CN217408900U (en) | 2022-05-06 | 2022-05-06 | Intracerebral lesion puncture drainage device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217408900U (en) |
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2022
- 2022-05-06 CN CN202221067581.7U patent/CN217408900U/en active Active
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