CN210131154U

CN210131154U - Orthognathic surgery negative pressure drainage device

Info

Publication number: CN210131154U
Application number: CN201821955743.4U
Authority: CN
Inventors: 山玉霞; 何苗; 曾婷; 白沅艳
Original assignee: Sichuan University
Current assignee: Sichuan University
Priority date: 2018-11-26
Filing date: 2018-11-26
Publication date: 2020-03-10
Anticipated expiration: 2028-11-26

Abstract

The utility model relates to a orthognathic surgery negative pressure drainage device, including injection tube, drainage tube, restraint band and piston anti-receding device, one end of drainage tube is connected with the nipple of the front end of injection tube, the restraint band is tied on the injection tube, the restraint band is provided with a connecting rope for connecting the injection tube and clothes together, the rear end of the injection tube is provided with a radially-extended supporting part; the piston anti-retreat device comprises a piston rod sleeve sleeved outside the piston rod, wherein the caliber of one end of the piston rod sleeve is larger than the inner diameter of the injection tube and is smaller than the diameter length of the abutting part, the caliber of the other end of the piston rod sleeve is smaller than the diameter length of the piston handle, the piston rod sleeve consists of a left half-ring sleeve and a right half-ring sleeve, one side of the left half-ring sleeve is hinged with one side of the right half-ring sleeve through a hinge, and the other side of the left half-ring sleeve is detachably connected with the other side of the right half-ring sleeve. The utility model discloses simple structure, low cost, convenient to use can last drainage secretion, and small, the patient's activity of being convenient for.

Description

Orthognathic surgery negative pressure drainage device

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a orthognathic surgery negative pressure drainage device.

Background

The dentogorofacial deformity refers to the abnormal volume and shape of the jaw bone, the abnormal relationship between the upper and lower jaw bones and other craniofacial bones, and the accompanying abnormal jaw, dentition, oromandibular system function and facial morphology caused by the abnormal jaw development. Orthognathic surgery aims at correcting malpositioned teeth, adjusting the relation between uncoordinated dental arches and the dental jaws, eliminating interference between the dental jaws, aligning the rows of teeth and eliminating compensatory inclination of the teeth, so that an incised bone segment can be smoothly moved to a designed correction position in the surgery, and a good dental jaw relation is established. Drainage is usually needed after orthognathic surgery, but the current drainage device has a complex structure and a large volume, and is inconvenient for the patient to move.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a vacuum drainage device for orthognathic surgery, which has simple structure, small volume and convenient movement for patients.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a negative pressure drainage device for orthognathic surgery comprises an injection tube, a drainage tube and an restraint strap, wherein one end of the drainage tube is connected with a nipple at the front end of the injection tube, the restraint strap is tied on the injection tube, a connection rope used for connecting the injection tube with clothes is arranged on the restraint strap, and a supporting part extending radially is arranged at the rear end of the injection tube.

Furthermore, the orthognathic surgery negative pressure drainage device also comprises a piston anti-retreat device, the piston anti-retreat device comprises a piston rod sleeve sleeved outside the piston rod, the caliber of one end of the piston rod sleeve is larger than the inner diameter of the injection tube and is smaller than the diameter length of the abutting part, the caliber of the other end of the piston rod sleeve is smaller than the diameter length of the piston handle, the piston rod sleeve consists of a left half-ring sleeve and a right half-ring sleeve, one side of the left half-ring sleeve is hinged with one side of the right half-ring sleeve through a hinge, and the other side of the left half-ring sleeve is detachably connected with the other side of the right half-ring sleeve.

Furthermore, the other side of the left half-ring sleeve is adhered to the other side of the right half-ring sleeve through a magic tape.

Furthermore, one surface of the restraint strap is a hook and loop fastener female surface, and the other surface of the restraint strap is a hook and loop fastener surface.

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

the fixed injector is in a negative pressure state, can continuously drain secretion, and is small in size, so that a patient can move.

Drawings

FIG. 1 is a schematic structural diagram of the first embodiment;

FIG. 2 is a schematic structural view of a constraining band;

FIG. 3 is a schematic structural view of a fourth embodiment in which a piston retreat preventing means is provided;

FIG. 4 is a schematic structural view of a fourth embodiment with two piston back-off prevention devices;

FIG. 5 is a schematic view of the piston anti-back device in a closed configuration;

FIG. 6 is a schematic view of the piston anti-back device in an open configuration;

in the figure: 1-injection cylinder, 2-drainage tube, 3-restraint belt, 4-connecting rope, 5-piston handle, 6-supporting part, 7-piston anti-withdrawing device, 71-left half ring sleeve, 72-right half ring sleeve, 73-hinge, 74-magic tape female buckle and 75-magic tape buckle belt.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings.

Example one

As shown in fig. 1 and 2, the orthognathic surgery negative pressure drainage device disclosed in this embodiment includes an injection tube 1, a drainage tube 2 and a restriction band 3, one end of the drainage tube 2 is connected with a nipple at the front end of the injection tube 1, the restriction band 3 is tied on the injection tube 1, one side of the restriction band 3 is a hook and loop fastener surface, and the other side is a hook and loop fastener surface. The restraint strap 3 is provided with a connecting rope 4 for connecting the injection tube 1 with clothes, and the rear end of the injection tube 1 is provided with a radially outward abutting part 6. The volume of the syringe 1 is designed and selected as desired.

The drainage tube 2 is arranged at the drainage position, the injection tube 1 is withdrawn, and the other smaller injection tube is clamped between the abutting part 6 and the piston handle 5, so that the injection tube 1 keeps a negative pressure state, and the connecting rope 5 is fastened at the buttonhole of the clothes of the patient to fix the injection tube 1. The injection tube 1 is kept in a negative pressure state, can continuously drain secretion, and is small in size and convenient for a patient to move.

Example two

The difference between this embodiment and the first embodiment is: as shown in fig. 3 and 4, the present embodiment further includes a piston anti-moving device 7, the piston anti-moving device 7 includes a piston rod sleeve for being sleeved outside the piston rod, a diameter of one end of the piston rod sleeve is larger than an inner diameter of the syringe 1 and smaller than a diameter length of the abutting portion 6, and a diameter of the other end of the piston rod sleeve is smaller than a diameter length of the piston handle 5.

As shown in fig. 5 and 6, the piston rod sleeve is composed of a left half ring sleeve 71 and a right half ring sleeve 72, one side of the left half ring sleeve 71 is hinged with one side of the right half ring sleeve 72 through a hinge 73, and the other side of the left half ring sleeve 71 is detachably connected with the other side of the right half ring sleeve 72. In this embodiment, the other side of the left half-ring sleeve 71 is adhered to the other side of the right half-ring sleeve 72 by a hook and loop fastener. Wherein, the left half-ring sleeve 71 is provided with a female hook-and-loop fastener 74, and the right half-ring sleeve 72 is provided with a matched hook-and-loop fastener 75. As shown in fig. 3 and 4, one, two or more piston anti-back devices 7 can be arranged according to requirements during use.

Arrange drainage tube 2 in drainage department, pumpback injection tube 1, open piston rod sleeve after the piston rod sleeve with piston rod sleeve cover after the piston rod with magic subsides box 74 with magic subsides son buckle 75 lock, the piston prevents moving back device 7 card between portion 6 and the piston handle 5 of holding, makes injection tube 1 keep the negative pressure state to thereby be connected connecting device and patient's clothes and fix injection tube 1.

The injection tube 1 is kept in a negative pressure state, can continuously drain secretion, and is small in size and convenient for a patient to move. The utility model discloses simple structure, low cost, convenient to use can last drainage secretion, and small, the patient's activity of being convenient for.

Of course, the present invention can be embodied in many other forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be made by one skilled in the art without departing from the spirit or essential attributes thereof, and that such changes and modifications are intended to be included within the scope of the appended claims.

Claims

1. The orthognathic surgery negative pressure drainage device is characterized by comprising an injection tube, a drainage tube and a restraint strap, wherein one end of the drainage tube is connected with a nipple at the front end of the injection tube, the restraint strap is tied on the injection tube, a connecting rope used for connecting the injection tube with clothes is arranged on the restraint strap, and a radially outward extending abutting part is arranged at the rear end of the injection tube.

2. The orthognathic surgical negative pressure drainage device according to claim 1, wherein: still include the piston and prevent moving back the device, the piston prevents moving back the device including being used for the cover piston rod sleeve outside the piston rod, and the bore of piston rod sleeve one end is greater than the internal diameter of injection tube and is less than the footpath length of supporting the portion, and the bore of the piston rod sleeve other end is less than the footpath length of piston handle, and the piston rod sleeve comprises left half ring cover and right half ring cover, one side of left half ring cover is passed through the hinge with one side of right half ring cover and is articulated, and the opposite side of left half ring cover can be dismantled with the opposite side of right half ring cover and be connected.

3. The orthognathic surgical negative pressure drainage device according to claim 2, wherein: the other side of the left half-ring sleeve is adhered to the other side of the right half-ring sleeve through a magic tape.

4. The orthognathic surgical negative pressure drainage device according to claim 1, wherein: one surface of the restraint strap is a hook and loop fastener female surface, and the other surface of the restraint strap is a hook and loop fastener surface.