CN210144777U

CN210144777U - Liquid injector for hydraulic lifting of maxillary sinus

Info

Publication number: CN210144777U
Application number: CN201920843331.XU
Authority: CN
Inventors: 贺艳文; 左军
Original assignee: Central South University
Current assignee: Central South University
Priority date: 2019-06-05
Filing date: 2019-06-05
Publication date: 2020-03-17
Anticipated expiration: 2029-06-05

Abstract

An injector for hydraulic maxillary sinus lifting, which comprises an injector cylinder, a piston and an injector head; the liquid injection cylinder comprises a cylinder body, a bending part and a liquid outlet which are integrally formed and sequentially arranged; the stack shell is straight tubulose, the liquid outlet sets up at annotating liquid a front end, and the stack shell passes through the flexion with the liquid outlet and links to each other, and the axial centerline of stack shell and the axis centerline of liquid outlet form 45 ~ 135 degrees's contained angle because of being connected of flexion, the piston is including setting up at the radial inboard piston rod that just slides and cup joint with the stack shell phase-match of stack shell and the boosting portion that is located the stack shell axial tip outside at the stack shell, annotate liquid head detachably and connect on the liquid outlet. The utility model discloses simple structure, it is nimble convenient that the operation is got up, has improved the operation efficiency of maxillary sinus hydraulic pressure promotion art. The adoption front end crooked annotates liquid a section of thick bamboo, combines threaded connection's notes liquid head for in the operation doctor no longer need carry out the centre gripping operation with hemostatic forceps, can be more convenient completion operation.

Description

Liquid injector for hydraulic lifting of maxillary sinus

Technical Field

The utility model belongs to the technical field of the oral medicine, concretely relates to annotate liquid ware for maxillary sinus hydraulic pressure promotes art.

Background

After the maxillary posterior teeth are lost, because of the lack of chewing stimulation, alveolar bones are continuously absorbed and withered, and the maxillary sinus is gasified to cause the serious shortage of the height of the residual bones at the upper back part and can not be implanted with an implant with a conventional length, so the maxillary sinus floor lifting technology is developed at the right moment. The operation is classified into a maxillary sinus floor elevation (external elevation) of a side wall fenestration and a maxillary sinus floor elevation (internal elevation) of a trans-alveolar crest. The former has the disadvantages of large wound, long healing time, more postoperative complications and the like. The latter is easy to be accepted by patients due to the advantages of small trauma, light postoperative reaction and the like, and is higher in clinical application, but the elevation height of the operative bone is limited, and some patients have symptoms of headache, dizziness and the like after the operation due to the knocking of the osteotome. Therefore, in order to make maxillary sinus lifting more minimally invasive, painless and comfortable, and the lifting range large, students continuously improve the maxillary sinus lifting operation, and SotirakisEG and colleagues put forward the maxillary sinus hydraulic lifting operation for the first time in 2005.

The hydraulic maxillary sinus lifting operation is to inject certain volume of physiological saline between the sinus membrane and the sinus floor based on Pascal principle, raise the mucous periosteum of maxillary sinus slowly and homogeneously with the pressure of the liquid, implant bone grafting material between the mucous membrane of the sinus floor and the sinus floor to increase the height of the implanted area and make the implantation possible.

Present operation water injection instrument for maxillary sinus hydraulic lifting art, by annotating the liquid head, disposable syringe and be used for connecting the instrument that disposable rubber tube between the two constitutes, the both ends of rubber tube are swing joint, it is difficult to reach tight contact to annotate between liquid head and the rubber tube, the easy weeping phenomenon that appears or annotate the liquid in-process and easily cause the separation between the two because of annotating liquid pressure great, consequently, in order to avoid above-mentioned condition to appear, the in-process of pouring into normal saline needs the doctor to hold the smooth going on of annotating liquid just can be guaranteed with hemostatic forceps holder grip interface between the two, it is very inconvenient, and the syringe is disposable, increase the consumptive material.

Patent document CN201610990994 discloses a maxillary sinus mucosa separation tip for maxillary sinus lifting, which comprises a connecting part, a neck part and a head part which are sequentially arranged, wherein the working end surface of the head part is a smooth convex surface, a hollow water channel is arranged in the maxillary sinus mucosa separation tip from the bottom of the connecting part to the smooth convex surface in a penetrating way, and a water outlet hole is formed in the center of the convex surface; in addition, the hollow water channel is arranged to be directly communicated from the connecting part to the smooth convex surface, so that the head of the working tip can be effectively cooled by the aid of the water flowing through the hollow water channel in the operation process, and local anesthetic or disinfectant can be applied to the wound surface by the aid of the hollow water channel, so that pain is relieved or the wound surface is disinfected. However, the water supply of the invention must depend on a tooth cleaning machine, and the use is still not flexible and convenient.

Disclosure of Invention

An object of the utility model is to provide an annotate liquid ware for maxillary sinus hydraulic pressure promotes art to the in-process that the normal saline was injected into at maxillary sinus hydraulic pressure that proposes in the solution background art needs the doctor to hold the smooth problem of going on that can guarantee to annotate liquid with hemostatic forceps holder.

In order to achieve the above purpose, the utility model provides an injector for hydraulic lifting of maxillary sinus, which comprises an injector cylinder, a piston and an injector head; the liquid injection cylinder comprises a cylinder body, a bending part and a liquid outlet which are integrally formed and sequentially arranged; the stack shell is straight tubulose, the liquid outlet sets up at annotating liquid a front end, and the stack shell passes through the flexion with the liquid outlet and links to each other, and the axial centerline of stack shell and the axis centerline of liquid outlet form 45 ~ 135 degrees's contained angle because of being connected of flexion, the piston is including setting up at the radial inboard piston rod that just slides and cup joint with the stack shell phase-match of stack shell and the boosting portion that is located the stack shell axial tip outside at the stack shell, annotate liquid head detachably and connect on the liquid outlet.

Further, the liquid outlet and the liquid injection head are connected through threads, external threads are arranged on the outer side of the liquid outlet, and matched internal threads are arranged on the liquid injection head.

Furthermore, the included angle that bend department formed is 90 ~ 100 degrees, the volume of stack shell is 5 ~ 10 ml.

Furthermore, the piston is made of medical stainless steel, and the liquid injection cylinder is made of transparent special glass or high polymer material which can resist the temperature below 130 ℃.

Furthermore, the front end of the piston rod is also provided with a sealing structure made of high polymer materials.

Furthermore, the boosting part is of an annular structure which is convenient for the dentist to inject water and withdraw by one hand, and a limiting part with the diameter larger than the inner diameter of the cylinder body is arranged between the boosting part and the piston rod.

Furthermore, the end part of the liquid injection cylinder close to the piston rod is provided with a cylinder body clamping part which is convenient for a dentist to clamp the index finger and the middle finger of the dentist when the injector is squeezed and pressed.

Furthermore, the cylinder body is marked with scale marks and is transparent, so that the water injection amount in the operation can be observed conveniently.

Furthermore, the material of the liquid injection head is a high polymer material.

Furthermore, the material of the liquid injection head is rubber which can resist the temperature below 130 ℃.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses simple structure, it is nimble convenient that the operation is got up, has improved the operation efficiency of maxillary sinus hydraulic pressure promotion art.

The utility model discloses well adoption front end is crooked annotates a liquid section of thick bamboo, combines threaded connection's notes liquid head for the doctor no longer need carry out the centre gripping with hemostatic forceps in the operation, can more convenient completion operation.

The piston is made of medical stainless steel, the liquid injection cylinder is made of transparent special glass or high polymer material which can resist the temperature below 130 ℃, the requirements of high-temperature disinfection in hospitals are met, repeated use is convenient, and the cost is saved.

The boosting part is of an annular structure, so that the doctor can conveniently inject water and withdraw water with one hand and vacate the hand to perform other operation actions.

The limiting part is arranged to protect the bending part of the liquid injection cylinder from being impacted by the piston rod.

In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:

FIG. 1 is a schematic view of an embodiment of the present invention;

wherein, 1, a liquid injection cylinder; 2. a piston; 3. a liquid injection head; 11. a barrel body; 12. a bending section; 13. a liquid outlet; 14. a barrel body clamping part; 15. scale lines; 21. a piston rod; 22. a boosting part; 23. a limiting part.

Detailed Description

The embodiments of the invention will be described in detail hereinafter with reference to the accompanying drawings, but the invention can be implemented in many different ways, which are defined and covered by the claims.

Example 1

The utility model provides an injector for hydraulic lifting of maxillary sinus, which comprises an injector barrel 1, a piston 2 and an injector head 3; the liquid injection cylinder 1 comprises a cylinder body 11, a bending part 12 and a liquid outlet 13 which are integrally formed and sequentially arranged; barrel 11 is the straight tube form, liquid outlet 13 sets up at 1 front end of annotating liquid section of thick bamboo, and barrel 11 links to each other through flexion 12 with liquid outlet 13, and the axial centerline of barrel and the axis centerline of liquid outlet form 45 ~ 135 degrees's contained angle because of the being connected of flexion 12, piston 2 including set up in the radial inboard piston rod 21 that just cup joints with barrel phase-match slip of barrel and the boosting portion 22 that is located the 11 axial tip outsides of barrel, annotate liquid head 3 detachably and connect in on the liquid outlet 13.

The utility model discloses simple structure, it is nimble convenient that the operation is got up, has improved the operation efficiency of maxillary sinus hydraulic pressure promotion art. The utility model discloses well adoption front end is crooked annotates a liquid section of thick bamboo, combines threaded connection's notes liquid head for the doctor no longer need carry out the centre gripping with hemostatic forceps in the operation, can more convenient completion operation.

Further, liquid outlet 13 and annotate and pass through threaded connection between the liquid head 3, the liquid outlet 13 outside is equipped with the external screw thread, annotates and is equipped with assorted internal thread on the liquid head 3.

Furthermore, the included angle that bending portion 12 department formed is 90 ~ 100 degrees, the volume of stack shell 11 is 5 ~ 10 ml.

Further, the piston 2 is made of medical stainless steel, and the liquid injection cylinder 1 is made of transparent special glass or high polymer material which can resist the temperature below 130 ℃. All meet the requirement of high-temperature disinfection in hospitals, are convenient to reuse and save cost.

Further, a sealing structure made of a polymer material is further provided at the front end of the piston rod 21. The sealing structure utilizes the characteristics of high polymer materials, so that the piston and the liquid injection cylinder can slide relatively and can be sealed and waterproof.

Furthermore, the boosting part 22 is an annular structure which is convenient for the dentist to inject water and withdraw with one hand, and the adoption of the annular structure can enable the doctor to vacate the hand to perform other operation actions. A limiting part 23 with the diameter larger than the inner diameter of the cylinder body is arranged between the boosting part 22 and the piston rod 21. The limiting part is arranged to protect the bending part of the liquid injection cylinder from being impacted by the piston rod.

Further, the end part of the liquid injection tube 1 close to the piston rod 21 is provided with a tube body clamping part 14 which is convenient for the dentist to clamp the index finger and the middle finger of the dentist to exert force when squeezing the liquid injector.

Furthermore, the cylinder body 11 is marked with scale marks 15 and is transparent, so that the water injection amount in the operation can be observed conveniently. The graduation marks are used for expressing the volume of liquid which can be used for injecting out by the barrel body.

Furthermore, the material of the liquid injection head 3 is a polymer material. The sealing structure is consistent with the liquid injection head, can be sterilized and disinfected by high-pressure steam, can be used repeatedly, and saves consumables.

Furthermore, the material of the liquid injection head 3 is rubber which can resist the temperature below 130 ℃.

The foregoing is a more detailed description of the invention, taken in conjunction with the specific preferred embodiments, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions and replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims

1. An injector for hydraulic maxillary sinus lifting, which is characterized in that the injector comprises an injection barrel (1), a piston (2) and an injection head (3); the liquid injection cylinder (1) comprises a cylinder body (11), a bending part (12) and a liquid outlet (13) which are integrally formed and sequentially arranged; barrel (11) are the straight tube form, liquid outlet (13) set up at notes liquid section of thick bamboo (1) front end, and barrel (11) link to each other through flexion (12) with liquid outlet (13), and the axial centerline of barrel and the axis central line of liquid outlet form 45 ~ 135 degrees's contained angle because of being connected of flexion (12), piston (2) including set up in the radial inboard of barrel and with barrel matching slip piston rod (21) that cup joints and lie in barrel (11) axial tip portion outside boost portion (22), it connects to annotate liquid head (3) detachably on liquid outlet (13).

2. The injector as claimed in claim 1, characterized in that the liquid outlet (13) is connected with the injection head (3) by a screw thread, the outside of the liquid outlet (13) is provided with an external screw thread, and the injection head (3) is provided with a matching internal screw thread.

3. The syringe as claimed in claim 1, wherein the angle formed at the bent portion (12) is 90 to 100 degrees, and the volume of the barrel (11) is 5 to 10 ml.

4. The injector according to claim 1, characterized in that the piston (2) is made of medical stainless steel, and the injector cylinder (1) is made of transparent special glass or polymer material which can resist the temperature below 130 ℃.

5. The syringe as claimed in claim 4, characterized in that the front end of the piston rod (21) is provided with a sealing structure made of polymer material.

6. The injector according to claim 1, wherein the boosting part (22) is an annular structure for facilitating single-hand injection and withdrawal of water by a dentist, and a limiting part (23) with a diameter larger than the inner diameter of the cylinder body is arranged between the boosting part (22) and the piston rod (21).

7. The syringe as claimed in claim 1, characterized in that the syringe barrel (1) is provided with a barrel holder (14) at the end near the piston rod (21) for facilitating the grip of the index and middle fingers of the dentist during squeezing of the syringe.

8. The syringe as claimed in claim 1, wherein the barrel (11) is marked with graduation marks (15) and is transparent to facilitate observation of the water injection amount during operation.

9. The injector according to claim 1, characterized in that the material of the injector head (3) is a polymer material.

10. The injector according to claim 9, characterized in that the material of the injector head (3) is rubber resistant to temperatures below 130 ℃.