CN113616863A

CN113616863A - Medical continuous negative pressure drainage fixing device

Info

Publication number: CN113616863A
Application number: CN202110882838.8A
Authority: CN
Inventors: 陈键
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-08-02
Filing date: 2021-08-02
Publication date: 2021-11-09

Abstract

The invention relates to the technical field of medical instruments, in particular to a medical continuous negative pressure drainage fixing device which comprises a base block and a wearing part; the wearing part comprises two elastic clamping arms which are both telescopic, connecting rods are connected to the sides of the two elastic clamping arms, which are far away from the base block, a flexible ring is arranged on one side of one connecting rod, which is far away from the elastic clamping arms, and a convex column is arranged on one side of the other connecting rod, which is far away from the elastic clamping arms; the wearing part is provided with a head wearing state and an ear wearing state, when the wearing state is carried out, the two elastic clamping arms stretch and drive the respective end parts to rotate to one side of the base block, the connecting rods are opened relative to the corresponding elastic clamping arms, and the wearing part is matched with the base block to form a first ferrule with a notch; when the ear wearing state, the two elastic clamping arms are contracted, and the two elastic clamping arms are matched with the base block to form a second ferrule with a notch. According to the scheme of the invention, the congestion phenomenon caused by the fact that the device is worn on the same part of the patient for a long time can be reduced.

Description

Medical continuous negative pressure drainage fixing device

Technical Field

The invention relates to the technical field of medical instruments, in particular to a medical continuous negative pressure drainage fixing device.

Background

The empty needle negative pressure drainage is the most common continuous negative pressure drainage method in clinic, and utilizes the principle of negative pressure suction to generate pressure lower than the atmospheric pressure at a wound surface and suck out subcutaneous liquid of the wound surface. The disposable empty needle negative pressure drainage is applied after plastic surgery, so that effective drainage can be maintained, the drainage liquid property can be conveniently observed, the drainage quantity can be accurately recorded, and the occurrence of complications such as flap necrosis, infection and the like can be reduced.

After the brain or ear canal dilatation operation of an orthopedic patient, a disposable empty needle is usually left for continuous negative pressure drainage, and the empty needle is usually fixed on the head of the patient clinically by using an adhesive tape. However, in the long-time drainage process, due to other reasons such as the movement of a patient, the viscosity of the adhesive tape is reduced, so that an empty needle is easily separated from the head of the patient, the negative pressure drainage is interrupted, and the treatment effect is seriously influenced. In addition, in the drainage process, the empty needle needs to be taken down at intervals to discharge effusion in the empty needle, and then the empty needle is fixed on the head of the patient by using the adhesive tape again. Thus, the operation is troublesome, and each time of taking off the empty needle needs a lot of time and consumes a lot of adhesive tapes, thereby increasing the treatment cost virtually.

In order to solve the above problem, as shown in fig. 1, the prior art provides a last negative pressure drainage fixing device, it includes elastic cord 22, elastic cord 22 tip is spliced there is magic subsides 1, vertical splice has sleeve 12 on the elastic cord 22, install splint 15 on the elastic cord 22, splint 15 and sleeve 12's right side wall sliding connection, semicircular groove 34 has been seted up on splint 15 left side, splint 15 right side transverse connection has push rod 29, it has limiting plate 30 to splice on the elastic cord 22, the spout has been seted up on the limiting plate 30 transversely, push rod 29 sliding connection is in the spout. The right end of the push rod 29 is hinged with a connecting rod 28, and the free end of the connecting rod 28 is vertically welded with a sliding rod 25. A rectangular bottom plate 20 is glued on the elastic band 22 on the right side of the sleeve 12, a limiting groove 21 is vertically formed in the bottom plate 20, a guide groove 24 is obliquely formed in the limiting groove 21, the lower end of the guide groove 24 faces to the left, and an avoiding groove 27 for the connecting rod 28 to move is formed in the left side of the bottom plate 20. Sliding mounting has slide 26 in spacing groove 21, and the vertical veneer in slide 26 bottom has actuating lever 35, and the slope has seted up bar hole 23 on slide 26, and the incline direction in bar hole 23 is opposite with guide way 24, and slide bar 25 sliding connection is in bar hole 23 and guide way 24. The vertical cementing has solid fixed ring 13 on the elastic cord 22 of sleeve 12 below, and horizontal slidable mounting has supplementary splint 14 in solid fixed ring 13, and supplementary splint 14 right side transverse connection has first rack 16, and the meshing has gear 18 above first rack 16, and the meshing has second rack 17 above gear 18, and second rack 17 transversely sets up, and it has montant 19 to articulate on the second rack 17, and montant 19 welds with push rod 29. The top symmetry of sleeve 12 articulates there is bracing piece 31, and the symmetry line of bracing piece 31 coincides with sleeve 12's axis, has all seted up the mounting hole on two bracing pieces 31, and equal lateral sliding installs backup pad 33 in two mounting holes. Wherein, the operator pulls the driving rod 35 downwards to drive the clamping plate 15 to fix the empty needle, and simultaneously drives the auxiliary clamping plate 14 to loosen the catheter. When the operator pushes the driving rod 35 upwards, the clamping plate 15 can be driven to release the empty needle, and the auxiliary clamping plate 14 is driven to clamp the conduit.

The above-mentioned fixing device has at least the following drawbacks when in use:

the whole device is bound on the head of a patient through the elastic band, after the patient wears the device for a long time, the scalp is pressed by the elastic band, blood stasis easily occurs, the blood flow of the scalp of the patient is influenced, and discomfort is caused to the patient, so that the problem is urgently needed to be solved.

Disclosure of Invention

In view of this, the invention provides a medical continuous negative pressure drainage fixing device, which mainly solves the technical problems that: how to reduce the congestion phenomenon caused by the fact that the same part of a patient wears the device for a long time.

In order to achieve the purpose, the invention mainly provides the following technical scheme:

the embodiment of the invention provides a medical continuous negative pressure drainage fixing device, which comprises a base block and a wearing part; the base block is provided with a fixing part for fixing the empty needle;

the wearing part comprises two elastic clamping arms which can stretch out and draw back, one elastic clamping arm is rotatably arranged on one side of the base block, the other elastic clamping arm is rotatably arranged on the other side of the base block, one sides of the two elastic clamping arms, which are far away from the base block, are both connected with connecting rods, one side of one connecting rod, which is far away from the elastic clamping arms, is provided with a flexible ring, and one side of the other connecting rod, which is far away from the elastic clamping arms, is provided with a convex column;

the wearing part is provided with a head wearing state and an ear wearing state, wherein in the head wearing state, the two elastic clamping arms extend and drive the respective end parts to rotate to one side of the base block, the connecting rods are opened relative to the corresponding elastic clamping arms, the wearing part and the base block are matched to form a first ferrule with a notch, and the first ferrule is used for being sleeved on the head of a patient;

when the ear-wearing type earphone is in an ear wearing state, the two elastic clamping arms are contracted and drive the respective end parts to rotate to the other side of the base block, the two elastic clamping arms and the base block are matched to form a second ferrule with a notch, the second ferrule is sleeved on the ear of a patient, each connecting rod is closed relative to the elastic clamping arms, the flexible ring is sleeved in the external auditory door of the patient, and the convex column is inserted into the external auditory canal of the patient through the inner hole of the flexible ring; wherein, two elastic clamping arms can open and shut relatively at the ear state of wearing.

Optionally, one end of each of the two connecting rods is welded to the corresponding elastic clamping arm, and each of the two connecting rods is made of a deformable metal material, so that each connecting rod can be opened or closed relative to the corresponding elastic clamping arm.

Optionally, one side of the flexible ring is provided with a first connecting block, and the first connecting block is sleeved at an end of one connecting rod and is kept relatively fixed with the connecting rod through glue.

Optionally, the convex column is a plastic part.

Optionally, one side of the convex column is provided with a second connecting block, the second connecting block is sleeved at the end part of the other connecting rod, and the second connecting block and the other connecting rod are kept relatively fixed through viscose.

Optionally, the insertion end of the convex column has a guiding round angle.

By means of the technical scheme, the medical continuous negative pressure drainage fixing device at least has the following beneficial effects:

the wearing part has a head wearing state and an ear wearing state, so that a patient can wear the device on the head or the ear according to needs, and the wearing part of the device can be switched between the head and the ear by the patient at intervals of time, such as half an hour, so as to avoid congestion caused by the fact that the same part of the patient wears the device for a long time.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.

Drawings

FIG. 1 is a schematic structural view of a continuous negative pressure drainage fixture provided by the prior art;

FIG. 2 is a schematic structural view of a wearing part of a medical continuous negative pressure drainage fixing device in a head-wearing state according to an embodiment of the invention;

FIG. 3 is a structural schematic diagram of another view angle of a wearable part of a medical continuous negative pressure drainage fixing device in a head wearing state according to an embodiment of the invention;

FIG. 4 is a structural schematic view of a wearing part of the medical continuous negative pressure drainage fixing device in an ear wearing state according to an embodiment of the invention;

FIG. 5 is a schematic view of the medical continuous negative pressure drainage fixture of FIG. 4 worn on the ear of a patient;

fig. 6 is an exploded view of the tee fitting with the valve mechanism.

Reference numerals: 1. an elastic clamping arm; 2. a connecting rod; 3. a flexible ring; 4. a convex column; 5. a three-way pipe; 6. a handle; 7. a cover plate; 8. a ball shaft; 9. a valve plate; 10. a base block; 20. empty needle; 30. a conduit; 31. a first connection block; 41. a second connecting block; 40. a first ferrule; 50. a second ferrule; 51. an inlet; 52. a first outlet; 53. a second outlet; 60. an external auditory meatus; 81. a connecting shaft; 82. a ball head; 101. a card slot; 501. a chute; 502. an end face.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

As shown in fig. 2 and 3, one embodiment of the present invention provides a medical continuous negative pressure drainage fixture, which includes a base block 10 and a wearing part. The base block 10 may have a plate shape, and a fixing portion for fixing the empty needle 20 is provided on the base block 10. The fixing part may include a catching groove 101 formed on the base block 10, and the fixing part is caught and fixed to the empty needle 20 through the catching groove 101. Specifically, one side of the base block 10 may be provided with a bump, and the slot 101 is disposed on the bump and penetrates through two ends of the bump. The locking groove 101 has an outer shape adapted to the outer wall of the hollow needle 20.

Aforesaid wear portion including elastic clamping arm 1, elastic clamping arm 1's quantity be two, and all can stretch out and draw back to make elastic clamping arm 1's length adjustable. The elastic clamping arms 1 can be made of stainless steel materials. The elastic clamping arm 1 is arc-shaped. One elastic clamping arm 1 is rotatably arranged on one side of the base block 10, and the other elastic clamping arm 1 is rotatably arranged on the other side of the base block 10. One side of each elastic clamping arm 1 departing from the base block 10 is connected with a connecting rod 2, and each connecting rod 2 can be opened or closed relative to the corresponding elastic clamping arm 1. One side of one connecting rod 2 that deviates from elastic clamping arm 1 is equipped with flexible ring 3, and one side of another connecting rod 2 that deviates from elastic clamping arm 1 is equipped with projection 4.

The wearing portion has two states, namely a head wearing state and an ear wearing state, wherein as shown in fig. 2 and fig. 3, when the wearing portion is in the head wearing state, the two elastic clamping arms 1 are both extended and both drive the respective ends to rotate to one side of the base block 10, each connecting rod 2 is also opened relative to the corresponding elastic clamping arm 1, the wearing portion and the base block 10 are matched to form a first ferrule 40 with a gap, and the first ferrule 40 is used for being sleeved on the head of the patient. Because two elastic clamping arms 1 all have elasticity, two elastic clamping arms 1 can drive two connecting rods 2 and open relatively to the clamping is at patient's head.

As shown in fig. 4, when the wearing portion is worn on the ear, the two elastic clamping arms 1 are all contracted and drive the respective ends to rotate to the other side of the base block 10, the two elastic clamping arms 1 and the base block 10 are matched to form a second ferrule 50 with a gap, the second ferrule 50 is used for being sleeved on the ear of the patient, each connecting rod 2 is closed relative to the elastic clamping arms 1, the flexible ring 3 is used for being sleeved in the external auditory door 60 of the patient, and the convex column 4 is used for being inserted into the external auditory canal of the patient through the inner hole of the flexible ring 3. The two elastic clamping arms 1 can be opened and closed relatively in the ear wearing state, so that the size of the second ferrule 50 can be adjusted to adapt to the size of the ears of a patient. As shown in fig. 5, in the ear wearing state, the second ferrule 50 formed by the two elastic clamping arms 1 and the base block 10 is sleeved on the ear of the patient, so that the effect of primarily limiting the whole device can be achieved; then the connecting rod 2 can be rotated, so that the flexible ring 3 at the end part of the connecting rod 2 is sleeved in the external auditory meatus 60 of the patient, and the effect of further limiting the whole device can be achieved; then rotate another connecting rod 2, make projection 4 on this another connecting rod 2 insert in patient's the external auditory canal through the hole of flexible ring 3 to can play and further carry out spacing effect to whole device, so second lasso 50, flexible ring 3 and the cooperation of 4 three of projection can carry out threefold spacing to whole device, make whole device can hang on patient's ear steadily.

In the above example, since the wearing part has the head wearing state and the ear wearing state, the patient can wear the present invention on the head or the ear as required, and the patient can switch the wearing part of the present invention between the head and the ear at intervals of time, such as half an hour, so as to avoid the blood stasis phenomenon caused by wearing the present invention on the same part of the patient for a long time.

In order to achieve the function of opening or closing the connecting rods 2 relative to the respective elastic clamping arms 1, in a specific application example, one end of each of the two connecting rods 2 may be welded to the corresponding elastic clamping arm 1, and each of the two connecting rods 2 is made of a deformable metal material, for example, each of the two connecting rods 2 is an aluminum rod or a copper rod, so that the two connecting rods 2 can be opened or closed relative to the respective elastic clamping arms 1 as required, and the deformed structural configuration can be stabilized. Wherein, preferentially, two connecting rods 2 are the round bar to reduce the friction to patient's skin when wearing, improve the comfort level when the patient wears.

In order to mount the flexible ring 3 on the end of the connecting rod 2, as shown in fig. 2, one side of the flexible ring 3 has a first connecting block 31, and the flexible ring 3 and the first connecting block 31 may be of an integrally molded structure. The first connecting block 31 is sleeved on the end of one connecting rod 2 and is kept relatively fixed with the connecting rod 2 through glue.

In order to mount the convex pillar 4 at the end of the other connecting rod 2, as shown in fig. 2, a second connecting block 41 may be disposed at one side of the convex pillar 4, and the convex pillar 4 and the second connecting block 41 may be an integrally formed structure. The second connecting block 41 is sleeved on the end of the other connecting rod 2 and is kept relatively fixed with the other connecting rod 2 through glue. Wherein, projection 4 can be the plastic part, and the grafting end of projection 4 has the direction fillet to reduce the friction to patient's external auditory canal when pegging graft, avoid haring patient's external auditory canal.

In order to realize the function of rotatably connecting and relatively opening and closing the two elastic clamping arms 1 with the base block 10, as shown in fig. 3, the two elastic clamping arms 1 may be connected with the base block 10 through ball shafts 8. Each ball axle 8 comprises a connecting shaft 81 for connecting with the elastic clamping arm 1 and a ball head 82 arranged at one end of the connecting shaft 81, and the connecting shaft 81 and the ball head 82 can be of an integrally formed structure. The base block 10 is provided with a spherical groove for rotationally fitting with the ball head 82. The number of the spherical grooves is two, and the two spherical grooves are respectively positioned at two sides of the base block 10, one spherical shaft 8 is installed in one spherical groove through the spherical head 82 of the spherical shaft, and the other spherical shaft 8 is installed in the other spherical groove through the spherical head 82 of the spherical shaft.

In the above example, the two elastic clamping arms 1 can both rotate relative to the base block 10 through the respective ball shafts 8, and in the ear wearing state, the two elastic clamping arms 1 can also be opened and closed relatively through the ball shafts 8. Wherein, through the ball axle 8 that sets up, make two elastic clamping arm 1 all have great degree of freedom, conveniently wear state and ear with two elastic clamping arm 1 and wear to switch between the state.

In a specific application example, one side of the lower end of the base block 10 is provided with a first inclined surface, and the other side is provided with a second inclined surface. The spherical groove includes a first spherical groove provided on the first inclined surface and a second spherical groove provided on the second inclined surface. The first spherical groove is used for rotationally matching with the ball head 82 of one ball shaft 8, and the second spherical groove is used for rotationally matching with the ball head 82 of the other ball shaft 8. In this example, the inclined surfaces are arranged on two sides of the lower end of the base block 10, so that the inclined surfaces can avoid the rotation of the elastic clamping arm 1. The ball axle 8 is arranged on the inclined plane, and can drive the elastic clamping arm 1 to rotate at two adjacent sides of the base block 10 so as to adapt to different wearing states. For example, in the head-mounted state, one elastic clamping arm 1 rotates to the left side of the base block 10, and the other elastic clamping arm 1 rotates to the right side of the base block 10. When the ear is worn, the other elastic clamping arms 1 rotate to the lower side of the base block 10.

As shown in FIG. 2, the medical continuous negative pressure drainage fixture of the present invention may further comprise a tee 5 and a valve mechanism. Tee 5 has an inlet 51, a first outlet 52 and a second outlet 53. The inlet 51 is adapted to be connected to the needle head of the empty needle 20 and the first outlet 52 is adapted to be connected to the catheter 30. The other end of the catheter 30 has a needle for insertion into a wound of a patient to aspirate the fluid beneath the wound. A valve mechanism for closing the first outlet 52 so that the inlet 51 communicates only with the second outlet 53; or closing the second outlet 53 so that the inlet 51 communicates only with the first outlet 52.

In the above example, when the valve mechanism closes the second outlet 53, the inlet 51 is only communicated with the first outlet 52, and the empty needle 20 can continuously drain the subcutaneous negative pressure of the wound through the catheter 30 to suck out the accumulated fluid in the subcutaneous wound of the patient. After the liquid accumulation in the hollow needle 20 is fully absorbed, the first outlet 52 can be closed through the valve mechanism, so that the inlet 51 is only communicated with the second outlet 53, at this time, the hollow needle 20 can be directly pressed, the liquid accumulation in the hollow needle 20 is discharged through the second outlet 53, for example, a plastic bag or the like can be used for receiving the discharged liquid accumulation at the second outlet 53. When the accumulated liquid in the hollow needle 20 is completely drained, the second outlet 53 can be closed again through the valve mechanism, so that the hollow needle 20 is communicated with the catheter 30 again, and the continuous negative pressure drainage is carried out on the subcutaneous surface of the wound. Wherein, because empty needle 20 need not to take off at the in-process of discharging its interior hydrops to compared with prior art simplified the operation process that empty needle 20 discharged inside hydrops, improved the operating efficiency that empty needle 20 discharged inside hydrops.

In order to realize the functions of the valve mechanism, as shown in fig. 6, the valve mechanism may include a valve sheet 9 and a handle 6 for driving the valve sheet 9 to move. The valve plate 9 is positioned inside the three-way pipe 5, and the handle 6 is positioned outside the three-way pipe 5. The handle 6 is used for pushing the valve plate 9 to move to the first position to block the first outlet 52, so that the inlet 51 is only communicated with the second outlet 53; the handle 6 is also used to block the second outlet 53 when the valve plate 9 is pushed to the second position, so that the inlet 51 is only communicated with the first outlet 52. In a specific application example, the three-way pipe 5 is provided with a chute 501 communicated with the inside, and one end of the handle 6 is connected with the valve sheet 9, for example, fixedly connected by glue or the like. The other end of the handle 6 passes through the slide 501. Still be equipped with apron 7 on the handle 6, apron 7 is used for the lid to close on the terminal surface 502 of spout 501, and with the sealed sliding fit of the terminal surface 502 of spout 501, wherein, can be equipped with the sealing washer between the terminal surface 502 of apron 7 and spout 501, this sealing washer can inlay and establish in the apron 7 one side that is close to spout terminal surface 502, perhaps inlays and establishes in one side of spout terminal surface 502 to improve the sealing performance between apron 7 and the spout terminal surface 502.

In the above example, the medical staff can push the handle 6 to adjust the position of the valve plate 9, and the use is convenient.

In order to facilitate the installation of the valve plate 9, in a specific application example, the aforementioned three-way pipe 5 may be a two-half structure, and the two halves thereof are fixedly connected in a sealing manner, for example, by screws or adhesive.

The second outlet 53 may be provided with an openable end cap to prevent residual effusion in the second outlet 53 from flowing out from the second outlet 53 to the head of the patient after the effusion is discharged from the empty needle 20.

The working principle and preferred embodiments of the present invention are described below.

The invention discloses a medical continuous negative pressure drainage fixing device which comprises a base block 10, wherein a wearing part and a fixing part are arranged on the base block 10. The fixing part comprises a slot 101 arranged on the base block 10, and the hollow needle 20 can be clamped in the slot 101. The hollow needle 20 is fixed through the clamping groove 101, the structure is relatively simple, and the use is convenient.

The wearing portion has a head wearing state and an ear wearing state. When wearing the state, two elastic clamping arm 1 of portion of wearing all extend, and one elastic clamping arm 1 rotates to the left side of base block 10, and another elastic clamping arm 1 rotates to the right side of base block 10, and connecting rod 2 on two elastic clamping arm 1 also all opens, and whole portion of wearing cooperates with base block 10 and forms first lasso 40 that has the breach. The present invention can be fitted over the head of the patient by means of the first collar 40. When the ear-wearing part is worn on the ear, the two elastic clamping arms 1 of the wearing part are both contracted and rotated to the lower side of the base block 10, and the two elastic clamping arms 1 are relatively closed by a certain angle and matched with the base block 10 to form a second ferrule 50 with a gap. The present invention can be fitted over the ear of the patient by the second collar 50. In the ear wearing state, the connecting rod 2 on one elastic clamping arm 1 is relatively closed, so that the flexible ring 3 on the connecting rod 2 is sleeved in the external ear door 60 of the ear of the patient; the connecting rod 2 on the other elastic clamping arm 1 is also relatively closed, so that the convex column 4 on the connecting rod 2 is inserted into the external auditory canal of the patient through the inner hole of the flexible ring 3. The second ferrule 50, the flexible ring 3 and the convex column 4 are matched to stabilize the present invention on the ear of the patient.

The base block 10 is further provided with a three-way pipe 5 and a valve mechanism, and the valve mechanism comprises a valve plate 9 arranged in the three-way pipe 5 and a handle 6 connected with the valve plate 9. The side wall of the three-way pipe 5 is provided with a chute 501 penetrating the inside, and the handle 6 extends out of the chute 501 and is fixedly connected with the valve plate 9. The handle 6 is further fixed with a cover plate 7, the cover plate 7 covers the end surface 502 of the sliding chute 501, and is in sealing sliding fit with the end surface 502 of the sliding chute 501, for example, the two can be in sliding sealing in a surface mode. The three-way valve 5 may be of a two-half structure to facilitate installation of the valve plate 9. The valve plate 9 and the handle 6 can be integrally formed. The cover plate 7 can be sleeved on the handle 6 and is sealed and fixed with the handle 6 through viscose glue.

Here, it should be noted that: in the case of no conflict, a person skilled in the art may combine the related technical features in the above examples according to actual situations to achieve corresponding technical effects, and details of various combining situations are not described herein.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims

1. The medical continuous negative pressure drainage fixing device is characterized by comprising a base block (10) and a wearing part;

the base block (10) is provided with a fixing part for fixing the hollow needle (20);

the wearing part comprises two elastic clamping arms (1), the two elastic clamping arms (1) are all telescopic, one elastic clamping arm (1) is rotatably arranged on one side of the base block (10), the other elastic clamping arm (1) is rotatably arranged on the other side of the base block (10), one sides of the two elastic clamping arms (1) departing from the base block (10) are both connected with the connecting rods (2), one side of one connecting rod (2) departing from the elastic clamping arm (1) is provided with a flexible ring (3), and one side of the other connecting rod (2) departing from the elastic clamping arm (1) is provided with a convex column (4);

the wearing part is provided with a head wearing state and an ear wearing state, wherein when the wearing state is carried out, the two elastic clamping arms (1) are extended and drive the respective ends to rotate to one side of the base block (10), each connecting rod (2) is opened relative to the corresponding elastic clamping arm (1), the wearing part and the base block (10) are matched to form a first ferrule (40) with a gap, and the first ferrule (40) is used for being sleeved on the head of a patient;

when the ear-wearing type earphone is in an ear wearing state, the two elastic clamping arms (1) are contracted and drive the respective ends to rotate to the other side of the base block (10), the two elastic clamping arms (1) and the base block (10) are matched to form a second ferrule (50) with a gap, the second ferrule (50) is used for being sleeved on ears of a patient, each connecting rod (2) is closed relative to the elastic clamping arms (1), the flexible ring (3) is used for being sleeved in an external auditory door (60) of the patient, and the convex column (4) is used for being inserted into an external auditory canal of the patient through an inner hole of the flexible ring (3); wherein, two elasticity arm lock (1) can open and shut relatively in the ear wearing state.

2. The medical continuous negative pressure drainage fixture according to claim 1,

one end of each connecting rod (2) is welded on the corresponding elastic clamping arm (1), and each connecting rod (2) is made of a deformable metal material, so that each connecting rod (2) can be opened or closed relative to the corresponding elastic clamping arm (1).

3. The medical continuous negative pressure drainage fixture according to claim 1 or 2,

one side of the flexible ring (3) is provided with a first connecting block (31), the end part of the connecting rod (2) is sleeved with the first connecting block (31), and the first connecting block (31) and the connecting rod (2) are kept relatively fixed through viscose glue.

4. The medical continuous negative pressure drainage fixture according to claim 1 or 2,

the convex column (4) is a plastic part.

5. The medical continuous negative pressure drainage fixture according to claim 1 or 2,

one side of the convex column (4) is provided with a second connecting block (41), the second connecting block (41) is sleeved at the end part of the other connecting rod (2) and is kept relatively fixed with the other connecting rod (2) through viscose.

6. The medical continuous negative pressure drainage fixture according to claim 1 or 2,

the insertion end of the convex column (4) is provided with a guide round angle.