CN201743734U

CN201743734U - Surgical equipment for treating rhinitis and nasosinusitis

Info

Publication number: CN201743734U
Application number: CN2010201926156U
Authority: CN
Inventors: 佀丽红
Original assignee: Individual
Current assignee: Shi Yuxue
Priority date: 2010-05-17
Filing date: 2010-05-17
Publication date: 2011-02-16
Anticipated expiration: 2020-05-17

Abstract

The utility model relates to surgical equipment for treating rhinitis and nasosinusitis. The surgical equipment comprises a balloon catheter, a guide catheter and a luminous guide wire. A center hole running through the whole balloon catheter is formed by a first joint part of the balloon catheter and the center of a center tube. A second joint part is communicated with a balloon tube inserted into a third joint part. The balloon tube is sleeved outside the center tube and is communicated with a balloon. The center hole and the balloon are sealed and isolated mutually. The surgical equipment has simple structure, good sealing performance, firm connection, low cost, and is convenient to process and mold.

Description

Surgical instrument for treating rhinitis and nasosinusitis

Technical Field

The utility model relates to a medical appliance, in particular to a surgical appliance for treating rhinitis and nasosinusitis, which can be used for expanding the blocked maxillary sinus ostium, frontal sinus ostium, sphenoid sinus ostium and the like.

Background

The nasal cavity and sinuses are located below the cranium, above the throat and mouth, and between the two eye sockets. Nasal and sinus lesions often spread to nearby tissues and cause a variety of complications. Usually, sinusitis has purulent secretion in nasal passages or nasal cleft, and thickened or polypoid mucosa in middle turbinate and middle nasal passages. It can be used for treating sinusitis and suppurative maxillary sinusitis by maxillary sinus puncture. For patients with mechanical obstruction factors such as nasal polyp, middle turbinate hypertrophy, nasal septum curvature, adenoid hypertrophy and the like, inflammation is difficult to cure due to obstruction of ventilation and drainage of nasal sinuses, and surgical therapies such as nasal polypectomy, turbinate resection in the nose, nasal septum correction, adenoid resection and the like can be adopted, and the nasal endoscope minimally invasive surgery is commonly used at present.

The incidence of chronic sinusitis is very high and according to one survey in the united states: americans with different degrees of chronic sinusitis exceed 3700 million people every year, and the number of attacks is rising year by year due to air pollution. In patients with poor drug therapy, the most common and effective treatment currently is "functional" endoscopic sinus patency, which aims to reestablish sinus ventilation and drainage through the natural sinus opening. The current operation mode is difficult to achieve the 'functional' sinus opening operation in the true sense, the injury of mucosa of a sinus drainage channel in the operation, the formation of scar tissues after the operation, the bleeding which is difficult to control in the operation, the iatrogenic injury caused by the operation and the like are still inevitable. Accordingly, nasal surgeons are continually seeking new, less invasive surgical procedures.

CN101563019a discloses a nasal sinus surgical instrument for nasal endoscope minimally invasive surgery, which is used in combination with a luminous guide wire passing through a metal dilating catheter and a balloon to dilate a blocked nasal sinus for treating rhinitis and sinusitis. However, this patent application is only a schematic illustration, and its specific structure is not described in detail, so that it is still difficult for those skilled in the art to directly utilize it.

Disclosure of Invention

The technical problem to be solved by the utility model is to provide a surgical instrument for treating rhinitis and nasosinusitis, which provides a practical detailed structure, and is especially applicable to nasal endoscope minimally invasive surgery.

In addition, the surgical instrument for treating rhinitis and nasosinusitis provided by the utility model can be matched with the prior art in the background technology for use, and has the advantages of simple structure, good sealing property, firm connection, convenient processing and forming and low cost.

In order to solve the technical problem, the utility model provides a surgical instrument for treating rhinitis and nasosinusitis, which comprises a balloon catheter, a guide catheter and a luminous guide wire, wherein one end of the balloon catheter is provided with a joint part, and the other end is provided with an expandable balloon; the joint part comprises a first joint part extending along the length direction of the balloon catheter, a second joint part perpendicular to the first joint part and a third joint part arranged opposite to the first joint part; said first joint section communicating with a base pipe threaded into said third joint section; the first joint part and the center of the central tube form a central hole which penetrates through the whole balloon catheter; the second connector part is communicated with a balloon inflation tube penetrating into the third connector part; the balloon inflation tube is sleeved outside the central tube and is communicated with the balloon; the central hole and the saccule are sealed and isolated from each other.

Preferably, the tail end opening of the balloon inflation tube is bonded with the balloon, one end of the balloon is bonded on the outer side of the balloon inflation tube, the other end of the balloon is bonded on the outer side of the central tube, and the middle of the balloon can be expanded under pressure.

Preferably, two radiopaque marking rings are fixedly arranged on the outer side of the part of the central tube positioned inside the balloon, and the two radiopaque marking rings are respectively positioned at two ends of the balloon.

Preferably, the first joint part is a separate member which is bonded to the second joint part and the third joint part which are integrally injection-molded.

Preferably, the third connector portion has a tapered neck opening into which the balloon inflation tube is insertedly disposed; and a metal supporting tube is arranged outside the balloon inflation tube and partially extends into the neck opening.

Preferably, the outside of the part of the metal support pipe exposed outside the neck of the third joint part is coated with a length identification mark line.

Preferably, the guide catheter has a connecting port portion, a metal sleeve, and a flexible catheter, the flexible catheter is inserted and disposed inside the connecting port portion, one end of the metal sleeve is inserted and disposed between the connecting port portion and the flexible catheter, and the other end of the metal sleeve is inserted into a wall of the flexible catheter.

Preferably, the outer side of the portion of the metal sleeve exposed between the connecting port and the flexible conduit is covered with a protective film, which extends from the connecting port to cover the whole exposed portion and a part of the flexible conduit.

Preferably, a support ring is arranged in the flexible lip at the end of the flexible conduit.

Preferably, the light emitting guidewire comprises an elongated main body portion and a transparent light emitting portion at a distal end of the main body portion.

The utility model provides an above-mentioned surgical instruments of treatment rhinitis, sinusitis's simple structure, the leakproofness is good, firm in connection, the machine-shaping of being convenient for, low cost.

Moreover, the surgical instrument for treating rhinitis and nasosinusitis provided by the utility model can be used by matching with the prior art in the background technology.

Drawings

The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein,

fig. 1 is a schematic view showing the overall structure of a surgical instrument for treating rhinitis and sinusitis according to an embodiment of the present invention;

FIG. 2 is a schematic view showing the overall construction of the balloon catheter shown in FIG. 1;

FIG. 3 is an enlarged sectional view taken at A in FIG. 2;

FIG. 4 is an enlarged sectional view taken at B of FIG. 2;

FIG. 5 is an enlarged sectional view taken at C of FIG. 2;

FIG. 6 shows a top view of a length portion of L2 shown in FIG. 2;

FIG. 7A shows a top view of the guide catheter of FIG. 1;

FIG. 7B shows a side view of the guide catheter of FIG. 1;

FIG. 7C shows an enlarged cross-sectional view of the guide catheter shown in FIGS. 7A and 7B;

fig. 8 shows an enlarged view of a portion of the luminescent guidewire of fig. 1.

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.

Fig. 1 is a schematic overall structure diagram of a surgical instrument for treating rhinitis and sinusitis according to an embodiment of the present invention, and as shown in the figure, the surgical instrument includes a balloon catheter I, a guiding catheter II, and a light-emitting guide wire III. The guide catheter II is used for extending into the nasal cavity of a patient, so that an operator can conveniently lead the luminous guide wire III and the balloon catheter II to directly reach the affected part of the nasal sinuses along the guide catheter II.

When the guide catheter II is used, the guide catheter II is inserted into an affected part under an endoscope, then the luminous guide wire III penetrates through the balloon catheter I, the luminous guide wire III penetrates into a nasal sinus or a frontal sinus under the guide of the guide catheter II, and whether the luminous guide wire III is in place or not is judged according to the position of light emitted by the luminous part F at the end part of the luminous guide wire III through the skin of the forehead of a patient. When the position of the balloon catheter I is displayed through the skin of the patient by the light-emitting part F, the catheter I is pushed along the light-emitting guide wire III, and the balloon catheter I is passed through the guide catheter II to reach the affected part to be dilated. Relevant background work and the like reference may be made to CN101563019A described in the background section, which is incorporated herein by reference in its entirety.

Fig. 2 is a schematic view showing the overall structure of the balloon catheter I shown in fig. 1, which is generally in the form of an elongated tubular catheter having a joint portion 1 at one end and a pressure-expandable balloon 2 at the other end. In particular, the balloon catheter of the present invention has an integrated shaft system and a balloon located near the distal end. The rod contains a dual lumen tubing. One lumen is used to inflate the balloon with a fluid such as saline or water, and the second allows passage of a luminescent guidewire III, as will be described in more detail below.

When the medical drainage device is used, the joint part 1 is connected with a mechanical part (not shown in the figure) for expanding the balloon, the balloon 2 is guided and pushed into the sinus ostium of a patient, fluid such as normal saline or water is filled into the balloon 2 through an external mechanical part to expand the balloon, the blocked part of the patient is propped open, so that the effect of smooth drainage is achieved, and operations such as disinfection, cleaning and the like can be applied. Relevant background work and the like reference may be made to CN101563019a described in the background section, which is incorporated herein by reference in its entirety.

Fig. 3 shows an enlarged cross-sectional view at a in fig. 2, and as shown, the joint portion 1 includes a first joint portion 11 extending along the length of the balloon catheter, a second joint portion 12 perpendicular to the first joint portion 11, and a third joint portion 13 provided opposite to the first joint portion 11. The first joint part 11 communicates with a central tube 3 penetrating the third joint part 13, and the first joint part 11 and the center of the central tube 3 form a central hole 31 penetrating the entire balloon catheter. The second connector portion 12 communicates with a balloon inflation tube 4 penetrating the third connector portion 13; a balloon inflation tube 4 is placed around the outside of the central tube 3 and communicates with the balloon 2 (see fig. 5). The central bore 31 is sealed from the balloon 2 (see fig. 5).

In operation, the first joint part 11 has a threaded connection 111, which allows for easy connection of other surgical components (e.g., a handle, etc.) (not shown); and the second joint part 12 also has a threaded connection 121 to which an external pipe (not shown) can be connected for inflating the balloon 2 by filling a fluid such as saline or water into the balloon inflation tube 4 through the external pipe by an external mechanical part. Since the first joint part 11 and the central tube 3 together form a central hole 31 extending through the entire balloon catheter, the luminescent guidewire III (see fig. 1) can be inserted through this central hole 31. Moreover, since the central hole 31 and the balloon 2 are sealed with each other, the arrangement of the central hole 31 does not affect the inflation operation of the balloon 2. In addition, since the central hole 31 is provided in the center of the balloon 2, the entire balloon catheter is smooth on the outside, and no protruding parts may cause damage to the nasal cavity or sinus of the patient.

The first joint section 11 is a separate component having a tapered neck 112. Second joint section 12 and third joint section 13 are integrally injection molded, and neck 112 of first joint section 11 is inserted into the hole on the opposite side of third joint section 13 as shown and bonded by adhesive 32. The central tube 3 is inserted into the neck 112 and is bonded by means of an adhesive.

The third joint portion 13 also has a tapered neck opening 132, and the balloon inflation tube 4 is inserted and disposed in the neck opening 132; a metal support tube 5 is arranged outside the balloon inflation tube 4, and the metal support tube 5 partially extends into the neck opening 132. In the present invention, the balloon inflation tube 4 is also made of relatively soft plastic, and because of its long length and poor rigidity, a section of metal support tube 5 is provided on the outside thereof (see also fig. 4, which shows an enlarged cross-sectional view at B in fig. 2). In a specific embodiment of the present invention, the metal supporting tube 5 is provided for protecting the balloon inflation tube 4, and on the other hand, the portion of the metal supporting tube 5 exposed outside the neck opening 132 (see the portion of length L2 in fig. 2) also provides support for the balloon inflation tube 4, so as to avoid the balloon inflation tube 4 from being damaged by bending.

In order to facilitate the operator to understand the length of the balloon catheter being inserted into the nasal cavity during the operation, the outside of the portion of the metal support tube 5 exposed outside the neck opening 132 of the third joint part 13 (the portion of length L2 in fig. 2) is covered with a length recognition mark line 51, see fig. 6. These marking lines may be paint coated on the outside of the metal support tube 5, or colored plastic rings or the like stuck on the outside of the metal support tube 5.

Of course, in order to avoid the above-mentioned wear and tear of the identification mark line 51, in a preferred embodiment of the present invention, the outer side of the metal support tube 5 (the portion of length L1 in fig. 2) is entirely covered with a transparent protective film 6, see fig. 3 and 4. In fact, in this embodiment, the protective film 6 and the balloon inflation tube 4 may be thermally fused together, and the portion of the metal support tube 5 extending into the neck 132 of the third joint portion 13 is entirely wrapped by the protective film 6 and the balloon inflation tube 4, thereby isolating the metal support tube 5 from the fluid used to inflate the balloon 2. The metal supporting tube increases the propelling property and the rotatable type of the balloon catheter, and the protective film 6 can prevent the metal supporting tube from damaging a human body. On the other hand, because the metal support tube 5 is wholly wrapped by the protective film 6 and the balloon inflation tube 4, the metal support tube 5 is clamped very tightly and is not easy to rotate and loosen, and the structural firmness is improved.

In addition, in order to prevent the neck 132 of the third joint portion 13 from being loosely connected, a joint boot 7 is bonded to the outside of the neck 132.

Fig. 5 shows an enlarged cross-sectional view at C of fig. 2, in which the distal opening 41 of the balloon inflation tube 4 is bonded to the balloon 2, i.e., one end of the balloon 2 is bonded to the outside of the balloon inflation tube 4 and the other end is bonded to the outside of the central tube 3, and the middle portion of the balloon is inflated under pressure. The central tube 3 extends from the distal opening 41 of the balloon inflation tube 4 and extends through the entire balloon 2.

In order to inflate the balloon under pressure in practice, it is necessary to inject a fluid, such as physiological saline, into the balloon 2 through the balloon inflation tube 4 via the second joint portions 12, and to control the inflation of the balloon 2 by controlling the pressure of the injected fluid.

In addition, in order to be able to locate the position of the balloon 2 by means of X-rays during the operation, in a preferred embodiment, at least one radiopaque marking ring 33 is fixedly arranged on the outside of the portion of the central tube 3 inside the balloon 2, two radiopaque marking rings 33 are shown in fig. 5, respectively on both sides of the balloon 2, so as to locate the length position of the entire balloon 2, in a specific embodiment, the radiopaque marking rings 33 are platinum rings.

Fig. 7A shows a top view, fig. 7B a side view and fig. 7C a cross-sectional view of the guide catheter II of fig. 1, the guide catheter having a mouthpiece 71, which is injection moulded from plastic and which, for gripping purposes, is formed integrally with the mouthpiece 71 with two fins 72. The interface portion 71 is provided with threads 73 that allow for easy attachment of other surgical components (not shown), such as a handle or the like.

The guide catheter further has a metal sleeve 74 and a flexible catheter 75, as shown in the cross-sectional view of fig. 7C, the flexible catheter 75 is inserted and disposed inside the mouthpiece 71, one end of the metal sleeve 74 is inserted and disposed between the mouthpiece 71 and the flexible catheter 75, and the other end is inserted into the wall of the flexible catheter 75. In fact, in this embodiment, the flexible conduit 75 is thermally fused to wrap substantially the entire portion of the metal sleeve 74 extending beyond the mouthpiece 71. To avoid corrosion of the exposed portion of the metal sleeve 74 between the mouthpiece 71 and the flexible conduit 75, a protective film 76 is applied to the outer side of the exposed portion of the metal sleeve 74, and the protective film 76 extends from the mouthpiece 71 to cover the entire exposed portion of the metal sleeve 74 between the mouthpiece 71 and the flexible conduit 75 and to cover a portion of the flexible conduit 75.

The metal sleeve 74 increases the pushability and rotatability of the guide catheter, and the flexible catheter 75 prevents the metal support tube from causing injury to the human body. On the other hand, since the metal sleeve 74 is entirely wrapped by the flexible conduit 75, the metal sleeve 74 is tightly clamped and is not easily loosened by rotation, thereby improving structural firmness.

The end of the flexible conduit 75 is provided with a flexible lip 77 to prevent the flexible conduit 75 from damaging nasal tissues when extending into the nasal cavity, and a support ring 78 is arranged in the flexible lip 77 to prevent the flexible lip 77 of the flexible conduit 75 from being worn and deformed.

Fig. 8 shows an enlarged view of a portion of the luminescent guidewire III shown in fig. 1, which generally includes an elongated main body portion 81 and a stainless steel wire 82 wound around the main body portion 81, the distal end of the main body portion 81 having a transparent luminescent portion F. In a preferred embodiment, the light emitting part F is a light emitting diode, which can be connected to an external light source (not shown) through a wire provided inside the main body part 81. Of course, as described in CN101563019a, the main body 81 may also be made of glass fiber, which is connected to an external light source, through which light is guided to the light emitting part F by optical fibers inside the main body 81.

The utility model provides an above-mentioned surgical instruments of treatment rhinitis, sinusitis's simple structure, the leakproofness is good, firm in connection, the machine-shaping of being convenient for, low cost. Moreover, the surgical instrument for treating rhinitis and nasosinusitis provided by the utility model can be used by matching with the prior art in the background technology.

It is to be understood by those skilled in the art that while the present invention has been described in terms of several embodiments, it is not intended that each embodiment cover a separate embodiment. The description is given for clearness of understanding only, and it is to be understood that all matters in the embodiments are to be interpreted as including all technical equivalents which are encompassed by the claims.

The above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention. Any equivalent changes, modifications and combinations that may be made by those skilled in the art without departing from the spirit and principles of the invention should be considered within the scope of the invention.

Claims

1. A surgical instrument for treating rhinitis and sinusitis, which is characterized by comprising a balloon catheter (I), a guide catheter (II) and a luminous guide wire (III), wherein one end of the balloon catheter (I) is provided with a joint part (1), and the other end is provided with an inflatable balloon (2); the joint part (1) comprises a first joint part (11) extending along the length direction of the balloon catheter, a second joint part (12) perpendicular to the first joint part (11) and a third joint part (13) arranged opposite to the first joint part (11); said first joint section (11) communicating with a central tube (3) penetrating said third joint section (13); the first joint part (11) and the center of the central tube (3) form a central hole (31) which penetrates through the whole balloon catheter; the second joint part (12) is communicated with a balloon inflation tube (4) penetrating into the third joint part (13); the balloon inflation tube (4) is sleeved outside the central tube (3) and is communicated with the balloon (2); the central hole (31) and the balloon (2) are sealed and isolated from each other.

2. The surgical instrument for treating rhinitis and sinusitis according to claim 1, wherein the tail end opening (41) of the balloon inflation tube (4) is bonded to the balloon (2), one end of the balloon (2) is bonded to the outer side of the balloon inflation tube (4), the other end of the balloon (2) is bonded to the outer side of the central tube (3), and the middle part of the balloon (2) can be inflated under pressure.

3. A surgical instrument for treating rhinitis and sinusitis according to claim 2, characterized in that the central tube (3) is provided with two radiopaque marking rings (33) outside the part inside the balloon (2), and the two radiopaque marking rings (33) are respectively arranged at the two ends of the balloon (2).

4. A surgical instrument for the treatment of rhinitis and sinusitis according to claim 1, wherein the first connector part (11) is a separate component that is bonded to the second and third connector parts (12, 13) that are integrally injection molded.

5. A surgical instrument for the treatment of rhinitis or sinusitis according to claim 1, wherein said third connector part (13) has a tapered neck (132), said balloon inflation tube (4) being inserted and arranged in said neck (132); a metal supporting tube (5) is arranged outside the balloon inflation tube (4), and the metal supporting tube (5) partially extends into the neck opening (132).

6. The surgical instrument for treating rhinitis and sinusitis according to claim 5, wherein the outside of the portion of the metal support tube (5) exposed outside the neck opening (132) of the third joint part (13) is coated with a length identification mark line (51).

7. A surgical instrument for the treatment of rhinitis or sinusitis according to any of claims 1 to 6, wherein the guide catheter (II) has a connecting port (71), a metal sleeve (74) and a flexible catheter (75), the flexible catheter (75) being inserted inside the connecting port (71), the metal sleeve (74) being inserted at one end between the connecting port (71) and the flexible catheter (75) and at the other end in the wall of the flexible catheter (75).

8. A surgical instrument for treating rhinitis or sinusitis according to claim 7, wherein the portion of the metal sleeve (74) exposed between the interface portion (71) and the flexible conduit (75) is covered by a protective film (76), and the protective film (76) extends from the interface portion (71) to cover the entire exposed portion and cover a portion of the flexible conduit (75).

9. A surgical instrument for the treatment of rhinitis or sinusitis according to claim 7, wherein said flexible lip (77) at the end of said flexible tube (75) is provided with a support ring (78).

10. A surgical instrument for the treatment of rhinitis or sinusitis according to any of claims 1-6 and 8-9, wherein the light emitting guidewire (III) comprises an elongated main body portion (81) and a transparent light emitting portion (83) at the end of the main body portion (81).