CN1084047A - The device that is used for the treatment of funnel-like deformation of thoracic cavity - Google Patents

Abstract

Device (1) is by dull and stereotyped 2, and stretches out in the other direction from its side, with the perpendicular face of slab supporting medium face on crooked rod member form.Flat board is to be used for fixing on sternal body, and rod-shaped elements is used for fixing with on the symmetric rib in thoracic cavity.

Description

The device that is used for the treatment of funnel-like deformation of thoracic cavity

The present invention relates to a kind of medical surgery device, particularly relate to a kind of device that is used for the treatment of the funnel-like deformation in thoracic cavity.

Many in common knowledge, the means that now are used for the treatment of funnel-like deformation of thoracic cavity are that the sternal body bone is carried out the rip cutting operation, cut patient's tibia again, and autotransplantation is in rip cutting operation place.（SU，A489505）。

Utilize the method for transplant, can not guarantee fully that the thoracic cavity has correct profile.This just must cause transplant to absorb, and fixed performance is degenerated.At last, also itself need surgical operation owing to cut the autotransplantation body, this can give patient with major injury.In view of the foregoing, the autotransplantation Therapeutic Method can not get practical application widely.

The means of the funnel-like deformation in the treatment thoracic cavity that another kind of crowd is in common knowledge are the thoracic cavity fixtures of utilizing a kind of metallic rod with rectangular cross section to make.This metallic rod has been made opening at the rod end of length direction, and formed minute bar pulls open with respect to the Y-direction relative direction of bar; Bar was attached on the rib of sternal body two side faces differing heights and fixed these minutes, in this way clamping breastbone (SU, A, 1230592).

Treating its shortcoming of funnel-form breastbone with this fixture is: must add enough big power and make member bending in surgical operation process.The branch bar that will inevitably be moved in this case, and carry out the scene according to crooked situation and revise.This fixture structure requires to fix in four positions along the rib of the differing heights of breastbone two sides.Its result will produce a torsional moment, and its numerical values recited is to decide with the departure of rib and center line of the bar, just produces a mechanical stress of not wishing to exist like this in breastbone.In addition, this securing member has also limited the further growth in thoracic cavity.Also must remember at last, when taking out fixture, must have an operation again.Therefore, above-mentioned fixture all has numerous inconvenience to doctor or patient.

Basic task of the present invention is exactly to finish a kind of like this fixed mechanism for the treatment of the device of infundibulate breastbone: the human engineering index of promptly considering patient fixes sternal body and rib and needn't repeat operation for removing fixture.

Purpose of the present invention is exactly that a kind of device for the treatment of funnel-like deformation of thoracic cavity will be provided, and it is a kind of breastbone fixed mechanism that has fixture.Fixture of the present invention is corresponding to be made of following part: be used to be placed on the thoracic cavity the flat bearing plate and with its perpendicular opposite planar on by the curved bar of the bend radius of the angle of rib.These members as the rod member part, are with making with the decomposable polymeric material that human body holds altogether.

Use has such fixed mechanism and treats the flexural deformation that the device of the funnel-like deformation in thoracic cavity does not just have original the sort of rod member; It can significantly accelerate surgical operating rate like this, and the shortening time also makes job simplification.The fastening of this fixture can not produce moment of torsion, therefore, reduced the mechanical stress in breastbone and the rib.Also should remember the continued growth that fixture of the present invention also can limit chest at last.

Apparatus of the present invention should be with can making with the decomposable polymeric material that human body holds altogether, and this material can be avoided to getting the repeat surgery that the device that removes former treatment funnel-form breastbone carries out.

For easily manufactured, fixture is made cuboid, make rod member with perpendicular plane, cuboid bottom surface on crooked, and on the cross section of cuboid, stretch out.Rod member is made bending in this fixture, and there is a straightway at this rod member middle part, for being clipped in the cuboid.

Now provide an embodiment and in conjunction with the accompanying drawings the present invention is done detailed explanation, but this is not a limitation of the present invention.Wherein: Fig. 1 is the shaft side figure of treatment funnel-like deformation of thoracic cavity device of the present invention;

Fig. 2 is an example decomposition view in the possible different schemes of explanation the present invention;

Fig. 3 is apparatus of the present invention are installed in explanation on one's body patient a principle schematic.

Fig. 1 has represented the device for the treatment of funnel-like deformation of thoracic cavity.It has fixed mechanism 1, and it is the flat board 2 of a cuboid, and dull and stereotyped base 3 (is as below illustrate) be conduct is placed in the area supported usefulness on the sternal body; From two opposite side faces of this flat board cuboid 2 have stretch out with the perpendicular plane of base 3 on crooked rod member 4 and 5, its bending radius and frame bending radius match.Dull and stereotyped second and rod member can be made with the decomposable polymeric material that human body holds altogether by any. is for example; What meet this material character can be with such as the inventor being В e п ы С. И. and the above vinyl nitrogen penta cyclic ketones that contains methyl methacrylate (в и н и л п и р р о л и д о н а с м e т и д м e т а к р и д а т о м) copolymer of the U.S. Patent No. 5011493 that waits, or as be above-mentioned same inventor's U.S. Patent No. 5011493 described vinyl nitrogen penta cyclic ketones (в и н и л п и р р о л и д о н а с 6 у т а д м e т а к р и л а т о м) copolymers that contain the poly-methyl olefin(e) acid ester of butadiene. Certainly also can adopt other the decomposable copolymer material that can hold altogether with human body, comprising:Polyethylene Glycol, polyactide, polydiene oxirane, paracyanogen acrylic aldehyde (п о л и г л и к о л и д ы, п о л и к а к т и д ы, п о л и д и о к с а н о н ы, п о л и ц и а п а к р и л а т ы) this must be that the biology with 1-3 biological decomposition phase can be separated copolymer material.Though yet can use different material of other biological decomposition phase, but must remember, the selection of material will depend on such principle:be shorter than 1 year as biological decomposition phase of material and just can cause the breastbone distortion to take place again, and the biological decomposition phase of material is longer than 3-5 and will causes body that foreign body is produced untoward reaction.In addition, use too short (for example being shorter than half a year) dull and stereotyped just can not assurance of biological decomposition phase, just do not reach the required necessary intensity of healing of rib and breastbone in this case in the reliable location of whole bone in convalescent period.

Like this, select for use device should depend on patient's human engineering physical parameter, depend on the material category of manufacturing installation again.

It is not cuboid that the flat board 2 of sternal fixation device 1 can have Any shape; No matter be which kind of shape, fixture 1 will have one to be used to be arranged to epicostal planar surface, its rod member with perpendicular plane, this plane in camber will be arranged.

The sternal fixation device that is used for the treatment of the funnel-form thoracic cavity can be made with various methods, for example uses methods such as compression moulding, mold pressing or die casting.

Fig. 2 represents the decomposition view of fixture, and it shows a kind of form of easy making.Can see that part 2 is made of ready-made 2 half blocks 6 and 7 from Fig. 2, wherein the central part of each half block is shaped on groove 8.Equally, the rod member 9 with central straight line segment 10 and bent back ends 11,12 also is ready-made.This rod member is placed in the half block 6 or 7 groove of part 2, subsequently with the mutual compacting of two half-phases, makes acquisition fixture as shown in Figure 1 thus.The complexes of the rod member of the flat board of all size area and various bending radius are equipped with for surgical work facility.

Now analyze the method for implementing operation when using apparatus of the present invention treatment funnel-form thoracic cavity.

In order to undergo surgery, pre-determine the bending radius of thoracic cavity body size and rib.Mix the suitable device of a cover by requirement of the present invention.Its area of plane can big or little 5mm than the area of measuring in advance ², also can corresponding deviation 5cm by the rate radius.

Can undergo surgery in the following manner.

The flat board of the front of mobile fully thoracic cavity body (п e р e д н ю ю к а р т и к а л ъ н у ю п л а с т и н у) is corrected the thoracic cavity.In order to guarantee to be fixed well, from a covering device, select for use to have the fixture that can match with the bending radius on the tram, thoracic cavity, with terylene fine rule 13,14 bearing flat plate is fixed near on two positions of sternal body; Bending section with the fine bundle of lines rod member of terylene is fixed on 15,16 two positions at each the side rib angle about breastbone.The wound layering is sewed up, and stayed catheter and reach 1 round the clock or the longer time.

Introduced the preferred plan in treatment funnel-form thoracic cavity above.The expert who is familiar with this area can propose can not exceed the modification of the scope of the invention.For example, shaft-like section of bending and knee can be reinforced with the chinlon line; Dull and stereotyped and rod member can be with containing the copolymer manufacturing that gathers ethyl cyanoacrylate, Fructus Vitis viniferae hydrochlorate calcium.Dull and stereotyped 2 just not can be made into cuboid, also other shape can be arranged, and are polygonal, garden shape or trapezoidal etc. as the cross section.Preferably their sharp edge is fallen the garden when adopting polygon.

Some devices in existing treatment funnel-form thoracic cavity, it is fixed and is respectively 5mm and 150mm, 3mm and 110mm, 6mm and 180mm with rod member diameter and bending radius; It is 10 * 10 * 2mm, 12 * 20 * 2mm, 16 * 18 * 8mm that the cuboid part that contains supporting plane has corresponding size.Use such device can guarantee that breastbone obtains correct form in convalescent period.

Claims (3)

1, the device that is used for the treatment of funnel-like deformation of thoracic cavity, comprise fixture 1 with retaining element, it is characterized in that: fixture contains the part (2) that is useful on the supporting plane (3) that is installed on the sternal body, with stretch out round about from its opposite flank, with the perpendicular face of supporting plane on crooked and knee (4 that match with angle of rib bending radius, 5), above-mentioned have flat and part rod member is by making with the biologically degradable material that biology holds altogether.

2, device according to claim 1 is characterized in that, described part comprises: have the flat board of the cuboid at the angle of falling Cheng Yuan, every limit, and stretch out from its side, and with the perpendicular plane of the bearing-surface of cuboid on crooked shaft-like part.

3, device according to claim 1, it is characterized in that: fixture has bent stick, and intermediate portion part is the straightway (9) that is sandwiched in the flat board.