CN114404699B - Jaw cyst self-tapping type telescopic windowing decompression drainage needle and operation assembly based on jaw cyst self-tapping type telescopic windowing decompression drainage needle - Google Patents
Jaw cyst self-tapping type telescopic windowing decompression drainage needle and operation assembly based on jaw cyst self-tapping type telescopic windowing decompression drainage needle Download PDFInfo
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/0233—Pointed or sharp biopsy instruments
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3415—Trocars; Puncturing needles for introducing tubes or catheters, e.g. gastrostomy tubes, drain catheters
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Gastroenterology & Hepatology (AREA)
- Prostheses (AREA)
- External Artificial Organs (AREA)
Abstract
The invention discloses a jawbone cyst self-tapping telescopic windowing decompression drainage needle, which comprises an inner sleeve and an outer sleeve which are both hollow structures, wherein the inner sleeve can be inserted into the outer sleeve to enable the barrel cavities of the inner sleeve and the outer sleeve to be communicated to form a drainage channel, and the inner sleeve can axially stretch in the barrel cavity of the outer sleeve; the lower end of the outer sleeve is a fixing part used for implanting a cyst part; the upper ends of the inner sleeve and the outer sleeve are torsion parts for applying external force; a plurality of drainage ports communicated with the drainage channels are respectively arranged at the upper end and the lower end of the outer sleeve and the upper end of the inner sleeve. The windowing decompression drainage needle does not need to be replaced after being implanted, is simple to operate, is convenient for a patient to wash by himself, can reduce the time and the times of patient treatment, is convenient to remove, can be directly rotated out reversely when the capsule cavity is obviously reduced or disappears, is reasonable in structural design, is simple, convenient and small, has strong practicability, and is suitable for industrial production.
Description
Technical Field
The invention belongs to the technical field of oral and maxillofacial surgical instruments, and particularly relates to a jaw cyst self-tapping type telescopic fenestration decompression drainage needle and a surgical assembly based on the same.
Background
Jaw cyst is a frequently-occurring disease of oral and maxillofacial surgery, and is caused by symptoms such as jaw expansion Long Jixing, bone continuous absorption and destruction, adjacent tooth loosening and displacement, dental pulp necrosis and the like due to the increase of hydrostatic pressure, the increase of bone absorption factors and the like. The treatment of a jaw cyst may take different operative formulas depending on its location, extent and adjacency to surrounding important anatomical structures. General jaw cysts can be treated by adopting cyst scraping or excision, but the operation type bone removal amount is large and the wound is large, especially for the larger jaw cysts, the scope of jaw defects caused by scraping or excision is larger, even teeth are loose and missing, and the face is free from bone support, so that the patients have the defects of incapacity in chewing, difficult pronunciation and facial collapse. The wide range of bone defects also reduces the retention and stability of the denture, thereby impeding denture repair. When a large cyst reaches an important anatomical structure such as a nerve vascular bundle, the existing operation type is likely to damage the surrounding important anatomical structure, and the cyst is often scraped or resected incompletely in order to protect the important anatomical structure, so that the recurrence probability is increased.
Along with the introduction of the minimally invasive treatment concept, the method for the conservative treatment of the large jawbone cyst tends to be firstly, and comprises a bag-type operation, a windowing decompression operation, a negative pressure suction operation and the like, wherein the windowing decompression operation has low technical difficulty, does not need special instruments and equipment, and is the most common method for the conservative treatment of the jawbone cyst. The fenestration decompression operation damages the environment in the cyst through the stoma, so that the cyst cavity is communicated with the outside, the cyst internal pressure is eliminated, and the bone absorption factors are reduced or eliminated, thereby reducing the cyst cavity and regenerating the adjacent bones. When the sac is contracted to the extent that important anatomical structures such as peripheral nerve blood vessels are not affected, scraping treatment or excision is performed, so that the operation risk is reduced, and the life quality is improved. Practice proves that the windowing decompression operation can effectively reduce complications of traditional surgical treatment and better preserve the shape and function of jawbone. The windowing decompression operation firstly performs cyst fistulization under local anesthesia or general anesthesia, and simultaneously or postpones placement of a drainage device, then periodically performs imaging review to observe that the cyst is obviously reduced or even disappears, and finally performs secondary scraping treatment or excision. The trauma is reduced to the greatest extent, the appearance of the jawbone is preserved, and the curative effect is definite.
However, the jaw cyst windowing decompression operation needs continuous drainage of the cyst cavity, various drainage devices are used clinically at present, but certain defects exist, such as large volume, easy falling off, personalized production before operation, time and effort consumption, obvious foreign body sensation, difficult cleaning, poor patient compliance, difficult fixation of a drainage tube, easy falling off, inconvenient carrying of devices such as a negative pressure ball and the like, no X-ray blockage of a drainage plug or tube material, incapability of observing the specific position relation between the drainage plug or tube and the cyst cavity through X-rays and the like, and the defects that certain thickness of the bone outside the cyst wall is needed and the flap placement is needed during operation are overcome in some drainage devices. In addition, scholars suggest to drain with a skin sheet or an iodized yarn strip, the skin sheet is easy to fall out or fall into the capsule cavity, and the incision can be closed by itself, so that the aim of reducing pressure can not be achieved. The iodized imitated yarns have peculiar smell, are frequently replaced and have long period, and influence the life quality.
In view of the problems of the existing drainage device for the cyst of the jaw, a new drainage device for the cyst of the jaw needs to be developed.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a jaw cyst self-tapping telescopic fenestration decompression drainage needle and an operation assembly based on the jaw cyst self-tapping telescopic fenestration decompression drainage needle, so as to solve the technical problems that in the prior art, a drainage device is difficult to operate, a capsule cavity is inconvenient to implant, an operation wound is large, a drainage port is easy to block, the size of the drainage device is fixed, and the drainage device is easy to drop into or drop out of the capsule cavity.
In order to achieve the above purpose, the invention is realized by adopting the following technical scheme:
the invention discloses a jawbone cyst self-tapping telescopic windowing decompression drainage needle, which comprises an inner sleeve and an outer sleeve which are both of hollow structures, wherein the inner sleeve can be inserted into the outer sleeve to enable a barrel cavity of the inner sleeve and a barrel cavity of the outer sleeve to be communicated to form a drainage channel, and the inner sleeve can axially stretch in the barrel cavity of the outer sleeve;
the lower end of the outer sleeve is a fixing part used for implanting a cyst part;
the upper ends of the inner sleeve and the outer sleeve are torsion parts for applying external force;
a plurality of drainage ports communicated with the drainage channels are respectively arranged at the upper end and the lower end of the outer sleeve and the upper end of the inner sleeve.
Preferably, the fixed part at the lower end of the outer sleeve is an inclined plane needle point structure with self-tapping threads, the diameter of the base part of the inclined plane needle point structure is the same as that of the outer sleeve, and a plurality of drainage ports at the lower end of the outer sleeve are arranged in grooves among the self-tapping threads.
Preferably, the torsion part at the upper end of the outer sleeve is an outer sleeve end cap, and the drainage openings at the upper end of the outer sleeve are formed in the side wall of the outer sleeve end cap.
Further preferably, the outer sleeve end cap is of a hollow cylindrical external angle structure capable of matching an external angle wrench or an internal angle screwdriver.
Still further preferably, from the viewpoint of structural stability, the end cap of the outer sleeve has a hollow cylindrical outer hexagonal structure, and can be matched with an outer hexagonal wrench or an inner hexagonal screwdriver.
Preferably, the torsion part at the upper end of the inner sleeve is an inner sleeve end cap, a torsion hole communicated with the drainage channel is formed in the top of the inner sleeve end cap, and a plurality of drainage ports at the upper end of the inner sleeve are formed in the side wall of the inner sleeve end cap and are communicated with the torsion hole.
Further preferably, the inner sleeve end cap is a hollow polyhedral spherical structure.
Still further preferably, the inner sleeve end cap has a hollow hexahedral spherical structure
Preferably, the inner sleeve and the outer sleeve are made of pure titanium, the surfaces of the inner sleeve and the outer sleeve are polished, and silver ions are sprayed on the surfaces of the inner sleeve and the outer sleeve.
Preferably, the inner sleeve and the outer sleeve are connected through screw threads.
Further preferably, the external screw threads of the inner sleeve and the internal screw threads of the outer sleeve are equidistant threads.
The invention also discloses a jaw cyst windowing decompression operation component, which comprises an inner angle screwdriver bit, an outer angle wrench and the jaw cyst self-tapping type telescopic windowing decompression drainage needle;
the torsion part of the outer sleeve is matched with the external angle wrench or the internal angle screwdriver bit, and the telescopic length of the outer sleeve and the position of the implantation capsule cavity can be adjusted through the external angle wrench or the internal angle screwdriver bit;
the torsion part of the inner sleeve is matched with the external angle screwdriver head, the length of the inner sleeve and the length of the outer sleeve composite body can be adjusted through the external angle screwdriver head, and the inner sleeve and the outer sleeve composite body can be self-tapped and screwed into the capsule cavity.
Further preferably, the inside angle screwdriver bit, the outside angle screwdriver bit and the outside angle wrench are respectively an inside hexagonal screwdriver bit, an outside hexagonal screwdriver bit and an outside hexagonal wrench.
Compared with the prior art, the invention has the following beneficial effects:
the invention discloses a jawbone cyst self-tapping telescopic windowing decompression drainage needle, which is characterized in that firstly, a hollow inner sleeve and a hollow outer sleeve are designed, when in use, the inner sleeve is inserted into the outer sleeve, and the total length of a decompression needle body can be adjusted through the axial movement of the inner sleeve according to the position relation between the decompression needle and the cyst; secondly, the fixing part at the lower end of the outer sleeve is used for fixing the windowing positions of the decompression needle and the cyst, so that the implantation is convenient, the operation is simple, the safety and the effectiveness are realized, the surgical wound can be remarkably reduced, and the drainage needle body formed by the inner sleeve and the outer sleeve is shaped like a dumbbell and is not easy to fall out or fall into the cyst cavity; thirdly, the barrel cavities of the inner sleeve and the outer sleeve are communicated to form a drainage channel, a plurality of drainage ports communicated with the drainage channel are formed at the upper end and the lower end of the outer sleeve and the upper end of the inner sleeve, and are positioned inside and outside the capsule cavity, so that multidirectional drainage can be realized, smooth drainage and continuous decompression can be fully ensured, blockage can be effectively prevented, the capsule cavity is quickly reduced, and the surrounding of the capsule cavity is accelerated to form bones; finally, the windowed decompression drainage needle does not need to be replaced after being implanted, is simple to operate, is convenient for a patient to wash by himself, can reduce the time and the times of patient treatment, is convenient to remove, can be directly screwed out reversely when the cyst cavity is obviously reduced or disappears, and then removes the cyst through minimally invasive surgery, thereby effectively reducing the surgery risk, and facilitating the cyst to be thoroughly scraped to reduce recurrence. If the cyst and the pressure reducing needle are completely wrapped, the cyst wall can be taken out of the cyst cavity when the pressure reducing needle is pulled out, so that the trauma and medical cost of removing the cyst in the secondary operation are avoided. The jaw cyst self-tapping telescopic windowing decompression drainage needle has reasonable structural design, is simple, convenient and small, has strong practicability and is suitable for industrial production.
Furthermore, the fixed part at the lower end of the outer sleeve is designed into a bevel needle point structure with self-tapping threads, the needle point is sharper, the cyst can be directly inserted, and then the cyst can be screwed into the cyst cavity, so that the safety and the effectiveness are realized.
Furthermore, the external thread of the inner sleeve and the internal thread of the outer sleeve are shallow in spiral groove and large in pitch, so that the stability of the pressure reducing needle is facilitated when the length of the pressure reducing needle body is prolonged, the external thread at the front end of the outer sleeve is different from the internal thread, the spiral groove is shallow first and then deep second, and the pitch is small, and the shallow-deep-shallow spindle-shaped structure is easy to implant and easy to take out, is good in retention and can increase the sealing performance of soft tissues, so that the pressure reducing needle is effectively prevented from falling out of the capsule cavity.
Further, the upper end of the inner sleeve, namely the head cap end, is in a sphere shape and protrudes from the oral cavity slightly, so that the foreign body sensation can be obviously relieved.
Further, the inner sleeve and the outer sleeve are connected through threads, the external threads of the inner sleeve are matched with the internal threads of the outer sleeve, the length of the inner sleeve and the length of the outer sleeve are always, and the length of the pressure reducing needle can be adjusted in real time according to the position and the depth of the cyst through the threaded connection of the inner sleeve and the outer sleeve.
Furthermore, the pressure reducing needle is made of pure titanium, has the best biocompatibility and safety, does not have foreign matter reaction or peculiar smell, is safe and comfortable, does not have any harm to human body, and can accurately judge the accurate position relation of the pressure reducing needle and the cyst by X-ray radiation.
Furthermore, the surfaces of the inner sleeve and the outer sleeve are polished, so that bacterial plaque retention can be effectively reduced, oral hygiene nursing is facilitated, and a large amount of silver ions are sprayed on the surfaces of the inner sleeve and the outer sleeve, so that sterilization can be continued, and the infection probability is reduced.
The invention also discloses a jaw cyst windowing and decompression operation assembly, which consists of the jaw cyst self-tapping type telescopic windowing and decompression needle, an inner angle screwdriver bit, an outer angle screwdriver bit and an outer angle wrench, wherein the inner angle screwdriver bit is matched with a torsion part at the upper end of the outer sleeve, and when the outer sleeve is used for windowing and decompression independently, the outer sleeve can be self-tapped and screwed into the capsule cavity for windowing and decompression through the inner angle screwdriver; the external angle screwdriver head is matched with the torsion part at the upper end of the inner sleeve, the length of the inner sleeve and the outer sleeve complex can be adjusted according to the specific position of the cyst, and when the windowing and the decompression are carried out, the inner sleeve and the outer sleeve complex can be self-tapped into the capsule cavity through the external angle screwdriver head to realize the windowing and the decompression; when the external angle wrench is matched with the torsion part at the upper end of the outer sleeve and the inner sleeve is rotated by the external angle screwdriver to adjust the length of the inner sleeve and the outer sleeve composite body, the torsion part of the outer sleeve is required to be fixed by the external angle wrench so as to prevent the outer sleeve from rotating. Each part structure in this operation subassembly is independent, and the mutual cooperation when using can, select according to clinical actual demand, the simple operation, processing is convenient, is suitable for developing into clinical operation apparatus.
Drawings
FIG. 1 is a schematic view of the structure of a fenestration pressure reducing drainage needle of the present invention;
FIG. 2 is a schematic structural view of an inner sleeve;
FIG. 3 is a top view of the inner sleeve;
FIG. 4 is an axial cross-sectional view of the inner sleeve;
FIG. 5 is a schematic view of the outer sleeve;
FIG. 6 is an axial cross-sectional view of the present outer sleeve;
FIG. 7 is a top view of the outer sleeve;
FIG. 8 is an axial cross-sectional view of a fenestrated reduced pressure drainage needle;
FIG. 9 is a schematic view of the configuration of the socket head cap screw driver head;
FIG. 10 is a bottom view of the working end of the hex screwdriver;
FIG. 11 is a schematic view of the structure of the outer hexagonal screwdriver;
FIG. 12 is a bottom view of the working end of the outer hex screwdriver;
FIG. 13 is a schematic view of the structure of an outer hexagonal screw wrench;
FIG. 14 is a photograph of a windowed reduced pressure drainage needle (inner sleeve, outer sleeve separated) of the present invention;
FIG. 15 is a photograph of a physical object of the fenestration pressure reducing drainage needle of the present invention (the use state of the inner sleeve and the outer sleeve);
FIG. 16 is a photograph of a physical object of a fenestration pressure reduction drainage needle (separation of an inner sleeve and an outer sleeve) by silver ion spraying;
fig. 17 is a photograph of a window-opened reduced pressure drainage needle (inner sleeve and outer sleeve in use) using silver ion spray.
Wherein: 1-an inner sleeve; 2-an outer sleeve; 3-an external screw thread; 4-drainage channels; 5-torsion holes; 6-an end cap drainage hole of the inner sleeve; 7-an inner sleeve end cap; 8-a drainage port at the lower end of the inner sleeve; 9-an outer sleeve smooth surface; 10-a drainage port at the upper end of the outer sleeve; 11-inner screw threads; 12-self-tapping threads; 13-drainage holes at the lower end of the outer sleeve; 14-bevel needle tip structure; 15-a drainage port at the lower end of the outer sleeve; 16-an outer sleeve torsion portion; 17-the connecting end of the inner hexagonal screwdriver; 18-inner hexagon screwdriver rod; 19-the working end of the inner hexagonal screwdriver; 20-a socket head cap screw connecting end fixing clamping groove 20; 21-the connecting end of the outer hexagonal screwdriver; 22-an outer hexagonal screwdriver rod; 23-an outer hexagonal connecting end fixing clamping groove; 24-the working end of the outer hexagonal screwdriver; 25-the working end of the outer hexagonal screwdriver; 26-spanner handle end.
Detailed Description
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be noted that the terms "lower" and "upper" in the description of the present invention are directional descriptions based on the method of using the fenestration pressure reducing needle and the related surgical assembly, and the end near the cyst is understood as "lower end" and the end far from the cyst is understood as "upper end".
The invention is described in further detail below with reference to the attached drawing figures:
referring to fig. 1 and 2, a jawbone cyst self-tapping telescopic windowing decompression drainage needle comprises an inner sleeve 1 and an outer sleeve 2 which are both hollow, wherein the inner sleeve 1 can be inserted into the outer sleeve 2 to enable the barrel cavities of the inner sleeve and the outer sleeve to be communicated to form a drainage channel 4, and the inner sleeve 1 can axially stretch in the barrel cavity of the outer sleeve 2;
the lower end of the outer sleeve 2 is a fixing part used for implanting a cyst part;
the upper ends of the inner sleeve 1 and the outer sleeve 2 are torsion parts for applying external force;
a plurality of drainage ports communicated with the drainage channel 4 are respectively arranged at the upper end and the lower end of the outer sleeve 2 and the upper end of the inner sleeve 1.
Referring to fig. 5 and 6, the fixed portion at the lower end of the outer sleeve 2 is a bevel needle tip structure 14 with a self-tapping external thread 12, the diameter of the base portion of the bevel needle tip structure 14 is the same as that of the outer sleeve 2, and a plurality of drainage openings at the lower end of the outer sleeve 2 are arranged in grooves among the threads of the self-tapping external thread 12.
Referring to fig. 3, 6 and 8, the inner sleeve 1 and the outer sleeve 2 are connected through screw threads, and the screw threads can convert circular motion into axial motion, so that the inner sleeve 1 can be axially moved by rotating, and the total length adjustment of the telescopic windowing decompression needle is realized. The outer screw thread 3 of the inner sleeve 1 and the inner screw thread 11 of the outer sleeve 2 are equidistant threads.
Referring to fig. 2, 3 and 4, the inner sleeve 1 comprises an inner drainage tube and an inner sleeve end cap 7 arranged at the upper end of the inner drainage tube, an outer screw thread 3 is arranged on the outer wall of the inner drainage tube, inner sleeve end cap drainage holes 6 are arranged at the side part and the end part of the inner sleeve end cap 7, and fluid passing through the drainage channel is discharged through the plurality of inner sleeve end cap drainage holes 6 to ensure smoothness of drainage.
The end part of the inner sleeve end cap 7 is provided with a torsion hole 5 for connecting a tool, the torsion hole 5 is communicated with the drainage channel 4, the axial position of the inner sleeve 1 is adjusted by rotating the inner sleeve 1 through the tool, the cross section of the torsion hole 5 is polygonal, and theoretically, the cross section of the torsion hole 5 can be any shape except a round shape, such as a groove shape, a triangle shape or a rectangle shape, in the embodiment, the torsion hole 5 is a regular hexagon hole, so that the connection of an outer hexagon spanner is facilitated, the inner sleeve 1 is driven to rotate through the outer hexagon spanner, and the axial movement of the inner sleeve 1 is realized; simultaneously torsion hole 5 also can regard as drainage hole to use, and inner skleeve end cap 7 wholly is oblate spheroid structure, and the circumference equipartition has a plurality of inner skleeve end cap drainage holes 6 on its outer wall, and inner skleeve end cap drainage holes 6 and torsion hole 5 intercommunication, and the liquid of drainage channel 4 is discharged through torsion hole 5 and a plurality of inner skleeve end cap drainage holes 6.
As the preferable scheme of this embodiment, the whole length of the design inner skleeve is 17-30mm, the diameter b=2mm of interior drainage tube, the diameter of inscribed circle of torsion hole of inner skleeve end cap is a=3mm, degree of depth c=2.5mm, inner skleeve lower extreme drainage mouth 8 is located the outer sleeve, outer lead screw thread 3 is equidistant screw thread, do benefit to interior, outer sleeve and connect steadily, equipartition six inner skleeve end cap drainage holes 6 on the lateral wall of inner skleeve end cap 7 to be located the center of every face in hexagon hole respectively in order to guarantee that the drainage is unobstructed.
Referring to fig. 5, 6 and 7, the outer sleeve 2 is of a hollow tubular structure, the outer wall of the outer sleeve 2 is an outer sleeve smooth surface 9, a fixing part of the outer sleeve 2 is arranged at the lower end of the outer sleeve 2, an outer sleeve torsion part 16 is arranged at the upper end of the outer sleeve 2, an inner screw thread 11 matched with the outer screw thread 3 of the inner sleeve 1 is arranged in the outer sleeve 2, the inner sleeve 1 can be screwed into the outer sleeve 2 through the matching of the outer screw thread 3 on the inner screw thread 11 of the outer sleeve 2, and an inner hole of the outer sleeve 2 is communicated with an outer hole of the inner sleeve 1 to form a drainage channel 4.
The upper end of the outer sleeve 2 is provided with an outer sleeve upper end drainage port 10, the fixed part of the lower end of the outer sleeve 2 is provided with an inclined plane needle point structure 14 with a self-tapping thread 12, the self-tapping thread 12 is positioned at the upper part of the inclined plane needle point structure 14 through the inside of the inclined plane needle point structure 14, the lower end of the self-tapping thread 12 is smooth and excessive with the outer wall of the outer sleeve 2, the diameter of the base part of the inclined plane needle point structure 14 is the same as the diameter of the outer sleeve 2, and a plurality of drainage ports at the lower end of the outer sleeve 2 are arranged in a groove between threads of the self-tapping thread 12. After implanting the cyst, rotatory outer sleeve 2 makes self tapping screw 12 smoothly get into inside the cyst, and the use of self tapping screw can guarantee that outer sleeve 2 and cyst form stable the connection, and the degree of depth that the outer sleeve stretches into the cyst is convenient for control, still does benefit to the dismantlement of outer sleeve simultaneously.
The inclined plane needle point structure 14 of the outer sleeve 2 and the outer wall of the self-tapping thread 12 area are provided with a plurality of groups of drainage holes, the plurality of groups of drainage holes are distributed at intervals along the axial direction, each group of drainage holes comprises a plurality of drainage holes 13 at the lower end of the outer sleeve, the plurality of drainage holes 13 at the lower end of the outer sleeve are positioned in the thread grooves of the self-tapping thread 12, and the outer sleeve torsion part 16 at the upper end of the outer sleeve is of an external hexagonal structure and is used for connecting an external hexagonal wrench.
As a preferable scheme of the embodiment, the whole outer sleeve is a hollow cylindrical pipeline, the whole length is 17-30mm, the outer side of the upper end is an outer hexagon, the lower end is a sharp inclined needle point structure, the capsule cavity is conveniently implanted, and the outer hexagon at the upper end is matched with the inner hexagon at the lower end of the outer hexagonal wrench or the inner hexagonal screwdriver. The self-tapping screw thread in outer side of outer sleeve lower extreme is different from the lead screw thread, and the helical groove is dark, and the pitch is little, and convenient self-tapping is difficult for droing again, and the pitch of self-tapping screw thread is 0.5mm, can effectively shorten implantation time, improves implantation efficiency. The screw thread is nearly right angle design, is equipped with many outer sleeve lower extreme drainage holes in the screw thread groove, and outer sleeve lower extreme drainage hole all runs through the surface of outer sleeve and communicates with each other rather than inside hollow pipeline, sets up six in each turn helicla flute, guarantees that the drainage is unobstructed.
The inner sleeve and the outer sleeve are made of pure titanium, so that the soft and hard tissue irritation is reduced, the cortical bone absorption is reduced, and the fenestration pressure reducing needle and surrounding tissues are sealed well. The design of the thread and the needle tip ensures that the windowing decompression drainage needle has good self-tapping property, is convenient to implant and saves the operation time. The screw pitch of the screw rod thread between the inner sleeve and the outer sleeve is 1mm, the spiral groove is shallow, the stability of the joint of the inner sleeve and the outer sleeve is facilitated, in addition, the surfaces of the inner sleeve and the outer sleeve are highly polished, bacterial plaque adhesion can be effectively reduced, oral hygiene nursing is facilitated, a large amount of silver ions can be sprayed on the inner surface and the outer surface of the outer sleeve and the inner sleeve to form a silver ion coating, and the sterilization can be continued, so that the infection probability is reduced.
The jaw cyst windowing and pressure reducing drainage surgical assembly formed based on the windowing and pressure reducing drainage needle is characterized by comprising an inner angle screwdriver bit, an outer angle wrench and the jaw cyst self-tapping type telescopic windowing and pressure reducing drainage needle;
the torsion part of the outer sleeve 2 is matched with an external angle wrench or an internal angle screwdriver bit, and the telescopic length of the outer sleeve 2 and the position of the implantation capsule cavity can be adjusted through the external angle wrench or the internal angle screwdriver bit;
the torsion part of the inner sleeve 1 is matched with the external angle screwdriver head, the length of the inner sleeve and the outer sleeve complex can be adjusted through the external angle screwdriver head, and the inner sleeve and the outer sleeve complex can be self-tapped and screwed into the capsule cavity.
Further, the outer hexagonal wrench is matched with an inner hexagonal hole at the upper end of the inner sleeve, and the inner hexagonal wrench and the outer hexagonal wrench are made of tungsten steel and are high in surface polishing.
Referring to fig. 9 and 10, a schematic structural diagram of the socket head cap screw driver head includes four parts, namely a socket head cap screw driver connecting end 17, a socket head cap screw driver bar 18, a socket head cap screw driver working end 19 and a socket head cap screw driver connecting end fixing clamping groove 20. The socket head cap screw driver connecting end 17 and the socket head cap screw driver bar 18 are universal and are fixedly connected with the universal screw driver handle through the socket head cap screw driver connecting end fixing clamping groove 20.
Preferably, the socket head cap screw driver can be made of tungsten steel, the surface is highly polished, the socket head cap screw driver head comprises an upper end (fixed clamping groove end) and a lower end (inner hexagonal groove end), the upper end is cylindrical, two sides are respectively provided with a concave socket head cap screw driver connecting end fixed clamping groove which is matched with a universal screw driver handle, the lower end is an inner hexagonal groove which is matched with the outer hexagon of the upper end of the outer sleeve, the inner hexagonal diameter is b, and the maximum outer diameter of the working end is c. The whole length of the inner hexagonal screwdriver is 50mm and 80 mm.
Referring to fig. 11 and 12, the outer hexagonal screwdriver is a schematic structural view of an outer hexagonal screwdriver, and comprises an outer hexagonal screwdriver connection end 21, an outer hexagonal screwdriver rod 22, an outer hexagonal screwdriver working end 24 and an outer hexagonal connection end fixing clamping groove 23. Similarly, the outer hexagonal screwdriver connection end 21 and the screwdriver rod 22 are universal and are fixedly connected with the universal screwdriver handle through the outer hexagonal connection end fixing clamping groove 23.
Further, the outer hexagonal screwdriver is also made of tungsten steel, and the surface is highly polished. Similarly, the outer hexagonal screwdriver connecting end and the screwdriver rod are universal, are fixedly connected with the universal screwdriver handle through the screwdriver connecting end clamping groove, have an outer hexagonal diameter of a, have an outer hexagonal screwdriver rod diameter of d, and have an overall length of 50mm and 80 mm.
Referring to fig. 13, a schematic diagram of an external hexagonal screw driver is shown, comprising an external hexagonal screw driver working end 25 and a driver handle end 26. Likewise, the working end 25 of the outer hexagonal screwdriver is matched with the outer hexagonal of the upper end of the outer sleeve, and the handle end 26 of the wrench is universal and is convenient to hold and use.
Further, the outer hexagonal screw wrench is made of tungsten steel, and the surface of the outer hexagonal screw wrench is frosted. The diameter of the opening of the working end is b, and the whole length of the working end is 100mm and 160 mm.
Referring to fig. 14 and 15, the physical photographs of the fenestration pressure-reducing drainage needle manufactured by the present invention are all made of pure titanium, and the surfaces are highly polished. Fig. 16 and 17 are physical photographs of a windowed decompression drainage needle with silver ions sprayed on the surface, and it can be seen that the jawbone cyst self-tapping type telescopic windowed decompression drainage needle can be produced in mass production in a large scale according to the size requirements of practical applications.
The invention relates to a jaw cyst self-tapping telescopic windowing decompression drainage needle, which is used for:
according to CT imaging accurate positioning cyst position and characteristics, selecting the position of the cyst weakness and the cyst cavity low position as the self-tapping point of the windowing and depressurizing needle, estimating the distance between the point and the nearest cyst wall, adjusting the length of the windowing and depressurizing needle to ensure proper implantation depth and angle, screwing the windowing and depressurizing needle into the cyst cavity under local anesthesia, and if the lower end of the windowing and depressurizing needle completely enters the cyst cavity, continuously flowing out the cyst liquid through a drainage port at the head cap, and alternately flushing the cyst cavity through the drainage port by using normal saline and 3% hydrogen peroxide solution. Multiple decompression drainage needles can be implanted for multi-cavity cyst or large jaw cyst to ensure sufficient drainage. For cystic lesions which cannot be accurately judged by preoperative CT, the quality is further clarified by puncture examination before implantation of a windowing decompression needle. Taking a small piece of cystic disease to transmit pathological examination by taking a biopsy for the patients who cannot puncture and extract the cystic fluid. The rest is operated in common with the fenestration drainage technique.
Clinically, according to the conditions of cyst windowing part, cyst cavity size, anatomy and the like, windowing decompression needles with different lengths are selected, and if the lengths are not suitable, the lengths of the composite bodies of the inner sleeve and the outer sleeve can be further adjusted until the requirements are met.
In view of the problems of the existing drainage device for the cyst of the jawbone, the invention needs to develop a new drainage device for the cyst of the jawbone, which has good biocompatibility and biological safety, is simple, small and convenient for production and transformation, can reduce operation difficulty, is convenient for implantation into a cyst cavity, can reduce operation wounds and keeps a drainage port unobstructed; the length of the drainage device can be adjusted at any time according to the position relation between the drainage device and the cyst, foreign body sensation and foreign body reaction can be relieved, the situation that the drainage device falls into or falls out of the cyst cavity is avoided, and frequent replacement is not needed. The specific advantages are as follows:
1) Easy drainage and convenient self-flushing
The fenestration pressure-reducing drainage needle is clinically convenient to select the low position of the capsule cavity for fenestration pressure-reducing drainage, and is easy to flow out due to the gravity action of the capsule liquid. In addition, as the insertion diameter of the disposable flushing needle (the common flushing needle used clinically) is far smaller than that of the self-tapping telescopic windowing decompression needle, the deep bag liquid and food residues can be flushed out by inserting the disposable flushing needle into the deep part of the bag cavity, the flushing technical requirement is low, the complex operation steps are not needed, and the flushing is more convenient and thorough. The patient or family member can be washed by himself without professional medical washing.
2) Reducing the re-diagnosis quantity
The windowing decompression needle is made of pure titanium, and has good biocompatibility and biosafety. After implantation, as the pressure in the capsule cavity is released and the capsule cavity is gradually reduced, new bone is gradually formed around the capsule cavity along with the reduction of the capsule cavity, the fenestration pressure reducing needle is not required to be frequently taken out for grinding or replacement, the capsule cavity is gradually reduced towards the fenestration pressure reducing needle and matched with the fenestration pressure reducing needle, and a patient can automatically wash the capsule cavity after eating, so that the washing of special medical staff is not required, and the number of times of re-diagnosis can be obviously reduced. Compared with the prior art, the implantation operation of the windowing decompression needle is completed once, and a patient does not need to carry out secondary repeated diagnosis to put in drainage devices such as a cyst plug and the like.
3) The flushing is more thorough, and the drainage is more complete
The upper end and the lower end of the self-tapping cyst windowing decompression needle are respectively provided with a plurality of drainage ports (holes), the outer side part of the cyst cavity can be filled with flushing fluid and cyst fluid from the right upper part of the head cap, and the flushing fluid and cyst fluid can be filled from the drainage ports (holes) dispersed from the side face, the drainage ports in the cyst are also provided with drainage ports (holes) between a plurality of side threads, even if part of drainage ports (holes) are blocked by soft tissues or are not smooth in drainage, other drainage ports (holes) can still continuously decompress and keep smooth in drainage. Multidirectional removal of the cyst fluid can be realized through the inside and outside polydisperse drainage ports (holes), the cyst pressure is reduced, the drainage effect is ensured, and the cyst cavity bone healing is promoted. Compared with the prior art that flushing fluid and cyst fluid can only pass in and out from the upper end and the lower end, the flushing is more thorough, and the drainage is more sufficient. Multiple drainage needles can be implanted at the same time for multi-cyst cavity cyst or large jaw cyst to ensure the decompression drainage effect.
4) The operation wound is small, and the operation time is shortened
The self-tapping cyst windowing decompression needle implantation is not required to be cut, turned over and deboned, and the needle tip after local anesthesia is directly inserted into and screwed into the cyst cavity, so that the operation is simple and convenient; the windowing decompression needle is a pre-finished product, the length of the inner sleeve and the outer sleeve can be accurately adjusted through threads, various types of decompression needles can be selected, and the decompression needle can be adjusted and selected according to the anatomical conditions of implantation positions, depth, capsule cavity range, bone thickness and the like. The gum is not required to be sutured in the operation, thereby reducing the trauma and the operation time. The times and time of patient's visit are also reduced without taking out stitches after operation.
5) Has good biocompatibility and safety
The inner sleeve and the outer sleeve of the self-tapping cyst windowing decompression needle are both made of pure titanium, the passivation performance of the titanium is excellent, and the surface can be rapidly oxidized in body fluid to form a thin, dense and indissoluble titanium oxide film. The titanium oxide film slows down the continuous oxidation rate of titanium, so that the windowing decompression needle has better corrosion resistance, has no stimulation and toxic effects on surrounding soft and hard tissues, and has good biocompatibility and safety to human bodies.
6) Good retention, difficult falling out or falling into the capsule cavity
The depth of the outer threads at the lower end of the outer sleeve is in a shallow-deep-shallow mode, so that the outer sleeve is convenient to screw in and screw out, after the outer threads are implanted into the capsule cavity, soft and hard tissues are contracted to form a package on the outer threads, the outer sleeve is well retained, and the outer sleeve is positioned at the middle part of the dumbbell-shaped outer sleeve, so that the windowing pressure reducing needle is not easy to fall off or enter the capsule cavity. The excellent biocompatibility and the excellent thread design of the inner sleeve and the outer sleeve of the pure titanium can reduce the stimulation to the cortical bone, reduce the bone absorption and ensure that the cortical bone and the inner sleeve can obtain the best stability and sealing performance. The mechanical fixation and the biological fixation lead the windowing decompression needle to be well retained without other manners (such as titanium nails, titanium plates or auxiliary retainers such as snap rings arranged on adjacent teeth).
7) Is favorable for forming soft tissues, and forms tight package and sealing on the cyst windowing decompression needle
The side faces of the inner sleeve and the outer sleeve of the pure titanium are round, the section of one side close to the main body of the pure titanium is round, and soft tissues cannot be damaged due to the round design. The surface is smooth and highly polished, so that the attachment of bacterial plaques can be effectively reduced, and adverse reactions such as inflammation and the like are avoided.
8) Reducing the operation times
The operation of the cyst windowing decompression needle implantation is completed once, a drainage device such as a cyst plug is not needed to be implanted in a secondary operation, the operation times are reduced, and the operation and treatment time is also reduced. In addition, the possibility of wound healing again in the intermittent period of two operations is avoided.
9) The X-ray radiation resistance of titanium metal is strong, and can be developed
The specific position, angle and three-dimensional relation with important anatomical structures around the cyst and the sac of the windowing decompression needle can be accurately positioned through CT and the like.
The device has good biocompatibility and biosafety, is simple, small and convenient for production and transformation, can reduce operation difficulty, is convenient for implantation into the capsule cavity, can reduce operation trauma, and keeps the drainage port unobstructed; the length of the drainage device can be adjusted at any time according to the position relation between the drainage device and the cyst, foreign body sensation and foreign body reaction can be relieved, the situation that the drainage device falls into or falls out of the cyst cavity is avoided, and frequent replacement is not needed.
The above is only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited by this, and any modification made on the basis of the technical scheme according to the technical idea of the present invention falls within the protection scope of the claims of the present invention.
Claims (6)
1. The jaw cyst self-tapping telescopic windowing decompression drainage needle is characterized by comprising an inner sleeve (1) and an outer sleeve (2), wherein the inner sleeve (1) and the outer sleeve (2) are of hollow structures, the inner sleeve (1) can be inserted into the outer sleeve (2) to enable a barrel cavity of the inner sleeve and a barrel cavity of the outer sleeve to be communicated to form a drainage channel (4), the inner sleeve (1) can axially stretch in the barrel cavity of the outer sleeve (2), and the total length of the drainage needle is adjusted through axial movement; the inner sleeve (1) is connected with the outer sleeve (2) through screw threads, the outer screw threads (3) of the inner sleeve (1) are equidistant threads with the inner screw threads (11) of the outer sleeve (2), and the spiral grooves are shallow and have large screw pitches;
the outer sleeve (2) is of a hollow tubular structure, the outer wall of the outer sleeve is an outer sleeve smooth surface (9), and the lower end of the outer sleeve (2) is a fixing part for implanting a cyst part;
the upper ends of the inner sleeve (1) and the outer sleeve (2) are torsion parts for applying external force;
the upper end and the lower end of the outer sleeve (2) and the upper end of the inner sleeve (1) are provided with a plurality of drainage ports communicated with the drainage channel (4), and the fixed part at the lower end of the outer sleeve (2) is an inclined needle point structure (14) with self-tapping threads (12); the spiral groove of the external thread at the lower end of the outer sleeve (2) is shallow, deep and then shallow, and the pitch is small, so that a shallow-deep-shallow spindle-shaped structure is formed;
the inner sleeve (1) comprises an inner drainage tube and an inner sleeve end cap (7) arranged at the upper end of the inner sleeve end cap (7), the inner sleeve end cap (7) is a torsion part at the upper end of the inner sleeve (1), a torsion hole (5) communicated with a drainage channel (4) is formed in the top of the inner sleeve end cap (7), a plurality of drainage ports at the upper end of the inner sleeve (1) are formed in the side wall of the inner sleeve end cap (7) and are communicated with the torsion hole (5), inner sleeve end cap drainage holes (6) are formed in the side part and the end part of the inner sleeve end cap (7), fluid passing through the drainage channel (4) is discharged through the inner sleeve end cap drainage holes (6) to ensure smoothness of drainage, and the inner sleeve end cap (7) is of a hollow polyhedral sphere structure.
2. The jawbone cyst self-tapping telescopic fenestration pressure-reducing drainage needle according to claim 1, wherein the diameter of the base part of the inclined needle tip structure (14) is the same as that of the outer sleeve (2), and a plurality of drainage openings at the lower end of the outer sleeve (2) are arranged in a groove between threads of the self-tapping thread (12).
3. The jawbone cyst self-tapping telescopic fenestration decompression drainage needle according to claim 1, wherein the torsion part at the upper end of the outer sleeve (2) is an outer sleeve end cap, and a plurality of drainage openings at the upper end of the outer sleeve (2) are arranged on the side wall of the outer sleeve end cap.
4. The jawbone cyst self-tapping telescopic fenestration pressure-reducing drainage needle of claim 3, wherein the outer sleeve end cap has a hollow cylindrical external angle structure, and can be matched with an external angle wrench or an internal angle screwdriver.
5. The jawbone cyst self-tapping telescopic fenestration decompression needle according to any one of claims 1-4, wherein the inner sleeve (1) and the outer sleeve (2) are made of pure titanium, the surfaces of the inner sleeve and the outer sleeve are polished, and silver ions are sprayed on the surfaces of the inner sleeve and the outer sleeve.
6. A jaw cyst fenestration decompression drainage surgical assembly which is characterized by comprising an inner angle screwdriver bit, an outer angle wrench and the jaw cyst self-tapping type telescopic fenestration decompression drainage needle as set forth in any one of claims 1-5;
the torsion part of the outer sleeve (2) is matched with an external angle wrench or an internal angle screwdriver bit, and the telescopic length of the outer sleeve (2) and the position of the implantation capsule cavity can be adjusted through the external angle wrench or the internal angle screwdriver bit;
the torsion part of the inner sleeve (1) is matched with the external angle screwdriver head, the length of the inner sleeve and the outer sleeve complex can be adjusted through the external angle screwdriver head, and the inner sleeve and the outer sleeve complex can be self-tapped and screwed into the capsule cavity.
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| CN202210225594.0A CN114404699B (en) | 2022-03-07 | 2022-03-07 | Jaw cyst self-tapping type telescopic windowing decompression drainage needle and operation assembly based on jaw cyst self-tapping type telescopic windowing decompression drainage needle |
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| CN202210225594.0A CN114404699B (en) | 2022-03-07 | 2022-03-07 | Jaw cyst self-tapping type telescopic windowing decompression drainage needle and operation assembly based on jaw cyst self-tapping type telescopic windowing decompression drainage needle |
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| CN114404699A (en) | 2022-04-29 |
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