CN217960511U - Auricular cartilage thinning device - Google Patents

Abstract

The utility model discloses an auricular cartilage thinning device, which comprises a clamping part and a cutting part, wherein the clamping part consists of a first handle and a second handle, the middle parts of the first handle and the second handle are connected together through a handle rotating shaft, the end part of the first handle is an L-shaped clamping part, and a handle base is arranged between the handle rotating shaft and the L-shaped clamping part; the end part of the second handle is an inverted L-shaped clamping part matched with the L-shaped clamping part; the cutting part consists of a handle, a blade and a handle knob, and the blade is arranged on a blade buckle of the handle through a blade clamping groove; the knife handle is installed on the knife handle base through the knife handle knob. The utility model provides an auricle cartilage thinners ware can follow both sides and bottom and fix auricle cartilage simultaneously to according to the fixed interval of cartilage thickness adjustment apparatus, be convenient for more hard when thinning, and can not injure the hand.

Description

Auricular cartilage thinning device

Technical Field

The utility model belongs to the technical field of medical instrument, concretely relates to auricular cartilage thinners.

Background

The auricular cartilage can be used as a reconstruction material to be applied to various ear operations, including tympanic membrane repair, artificial ossicular gaskets, upper tympanum outer side wall reconstruction, external auditory canal rear wall reconstruction, mastoid cavity filling and other fields, wherein the original auricular cartilage (about 1 to 3mm thick) needs to be further thinned to be 0.5mm or even thinner in the applications of tympanic membrane repair, artificial ossicular gaskets and the like.

The existing thinning mode is to use a forceps holder to fix cartilage and then thin the cartilage by using a scalpel, but the force of the forceps holder is greatly influenced by the individual of an operator, the forceps holder is difficult to cut when the force of the forceps holder is too large, the cartilage is possibly damaged due to the existence of textures on the inner side surfaces of the forceps holder, and the cartilage is difficult to stabilize when the force of the forceps holder is too small; due to the fact that the clamping area of the forceps holder is too small, the cartilage is easily stressed unevenly, and the cartilage is damaged locally; both sides of the clamp are suspended, the bottom of the clamp is not supported, force is not easy to apply when the clamp is thinned, and the clamp needs to be additionally supported by other planes; in addition, the forceps device and the thinning tool are separated from each other, so that two devices are prepared for application, the blade is manually controlled during thinning, the complete parallel with the plane of the cartilage is difficult to achieve, and the thickness of the thinned cartilage is not uniform.

Also have the art person directly to cut thin by hand cartilage, although cartilage is fixed more firm, the dynamics is moderate, but aseptic gloves separation influences the sense of touch, and has sharp ware accidental injury hand risk.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the not enough of above prior art, provide one kind can follow both sides and bottom and fix auricular cartilage simultaneously to according to cartilage thickness adjustment apparatus fixed interval, be convenient for more hard when thinning, and can not injure the auricular cartilage of hand and thin the ware.

In order to achieve the purpose, the technical scheme is as follows:

an auricular cartilage thinning device comprises a clamping part and a cutting part, wherein the clamping part consists of a first handle and a second handle, the middle parts of the first handle and the second handle are connected together through a handle rotating shaft and can be opened and closed through the handle rotating shaft; the end part of the first handle is an L-shaped clamping part, and a handle base is arranged between the handle rotating shaft and the L-shaped clamping part; the end part of the second handle is an inverted L-shaped clamping part matched with the L-shaped clamping part, the inverted L-shaped clamping part and the L-shaped clamping part form a auricular cartilage fixing clamp, and the auricular cartilage fixing clamp can be used for fixing the auricular cartilage from two sides and the bottom simultaneously; the cutting part consists of a handle, a blade and a handle knob, one end of the handle is provided with a rotating hole, and the middle part of the handle is provided with a blade buckle; the blade is provided with a blade clamping groove and is arranged on a blade buckle of the knife handle through the blade clamping groove; the handle knob is provided with a handle clamping groove, the handle is arranged on the handle clamping groove and can rotate by taking the handle clamping groove as a shaft, and the handle knob is arranged on the handle base; the handle of a knife is rotated by taking the handle of a knife clamping groove as an axis through holding, the auricular cartilage fixed by the clamping part is cut, the use is convenient and safe, and the cutting thickness is uniform.

As the utility model discloses a another kind of preferred scheme, first handle and second handle still are provided with ratchet fastener and ratchet respectively at handle of a knife base opposite side for carry on spacingly to the relative position of the first handle after auricle cartilage is fixed and second handle, prevent that unstable condition from appearing in the operation in the centre gripping dynamics.

As another preferred scheme of the utility model, the L type clamping part of first handle is smooth plane with auricular cartilage's contact surface, the type of falling L clamping part of second handle is provided with the elastomer gasket, prevents that the clamping-force is too big to cause the damage to auricular cartilage.

As another preferred scheme of the utility model, the handle of a knife is kept away from rotatory hole one end and is provided with anti-skidding texture to hand is to the frictional force of handle of a knife when increasing the cutting.

As another preferred scheme of the utility model, handle of a knife knob tip is provided with the equidistance screw thread, and the axial position of blade is adjusted to the rotatory handle of a knife knob of accessible, and then adjusts the cutting thickness of auricular cartilage.

Furthermore, the manual rotating part of the handle knob is provided with anti-skidding textures, so that the friction force of a hand on the handle knob when the cutting thickness is adjusted is increased.

Further, the handle of a knife knob is provided with the circumference scale, the handle of a knife base is provided with the mark line, comes the axial position change of the blade that every rotatory round of accurate control handle of a knife knob brought through circumference scale and mark line, and then realizes the accurate control of cutting thickness.

Compared with the prior art, the utility model provides an auricular cartilage thinners has following gain effect:

(1) The utility model discloses to fix auricular cartilage simultaneously from both sides and bottom, L type centre gripping position bottom is the supporting part when the cutting can be regarded as to the plane, is smooth plane with auricular cartilage's contact surface, and is provided with the elastomer gasket, has protected auricular cartilage not to receive the damage, and setting up of ratchet fastener and ratchet makes auricular cartilage atress remain stable in operation process.

(2) The utility model completes the cutting of the auricular cartilage fixed by the clamping part by rotating the hand-held tool handle, is convenient and safe to use, and has uniform cutting thickness; the cutting thickness of the auricular cartilage is accurately controlled by the circumference graduated scale on the handle knob and the coordinate indication line at the bottom of the handle.

Drawings

Fig. 1 is the structural schematic diagram of the utility model discloses first handle, fig. 2 is the utility model discloses the structural schematic diagram of second handle, fig. 3 is the utility model discloses the structural schematic diagram of handle of a knife, fig. 4 is the utility model discloses the structural schematic diagram of blade, fig. 5 is the utility model discloses the structural schematic diagram of handle of a knife knob, fig. 6 is the utility model discloses overlook the structural schematic diagram of angle, fig. 7 is the utility model discloses look up the structural schematic diagram of angle.

Wherein: 1-a first handle; 11-L-shaped clamping parts; 12-a tool holder base; 121-mark line; 2-a second handle; 21-an inverted L-shaped clamping portion; 3-a handle shaft; 4-a knife handle; 41-rotation hole; 42-blade snap; 5-a blade; 51-a blade pocket; 6-handle knob of the knife; 61-a knife handle clamping groove; 62-circumference graduated scale; 71-ratchet wheel; 72-ratchet catch; 8-an elastomeric gasket; 9-auricular cartilage samples.

Detailed Description

For a better understanding of the present invention, the following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings.

As shown in the attached drawings 1-7, an auricular cartilage thinning device comprises a clamping part and a cutting part, wherein the clamping part consists of a first handle 1 and a second handle 2, the middle parts of the first handle 1 and the second handle are connected together through a handle rotating shaft 3, the end part of the first handle 1 is an L-shaped clamping part 11, the contact surface of the L-shaped clamping part 11 and the auricular cartilage is a smooth plane, a handle base 12 is arranged between the handle rotating shaft 3 and the L-shaped clamping part 11, and the handle base 12 is provided with a marking line 121; the end part of the second handle 2 is provided with an inverted L-shaped clamping part 21 matched with the L-shaped clamping part 11, and the inverted L-shaped clamping part 21 is provided with an elastomer gasket 8; the cutting part consists of a handle 4, a blade 5 and a handle knob 6, wherein one end of the handle 4 is provided with a rotating hole 41, the middle part of the handle is provided with a blade buckle 42, and one end far away from the rotating hole 41 is provided with anti-skidding textures; the blade 5 is provided with a blade clamping groove 51, and the blade 5 is arranged on the blade buckle 42 of the knife handle 4 through the blade clamping groove 51; the cutter handle knob 6 is provided with a cutter handle clamping groove 61, the cutter handle 4 is installed on the cutter handle clamping groove 61 and can rotate by taking the cutter handle clamping groove 61 as a shaft, equidistant threads are arranged at the end part of the cutter handle knob 6, anti-skidding textures and a circumference dividing ruler 62 are arranged at the manual rotating part, and the cutter handle knob 6 is installed on the cutter handle base 12; the first handle 1 and the second handle 2 are further provided with a ratchet clamping piece 72 and a ratchet 71 on the other side of the handle base 12 respectively.

When cutting the auricular cartilage sample 9, firstly, by rotating the handle knob 6, the cutting thickness of the auricular cartilage sample 9 is accurately set by using the circumferential scale 62 on the handle knob 6 and the mark lines 121 on the handle base 12, for example, if each circle of the handle knob 6 is rotated to be 1mm, the minimum scale of the circumferential scale 62 is 1mm ÷ 100=0.01mm, when the scale line representing 0 in the circumferential scale 62 is aligned with the mark line 121, the cutting thickness is 0mm, and when the required cutting thickness of the auricular cartilage sample 9 is 0.5mm, the scale line representing 50 in the circumferential scale 62 is aligned with the mark lines 121; after the cutting thickness is set, the auricular cartilage sample 9 is clamped between the L-shaped clamping part 11 and the inverted L-shaped clamping part 21, the relative positions of the first handle 1 and the second handle 2 are locked by using the ratchet 71 and the ratchet clamping piece 72 after the force is adjusted, and the change of the force in the subsequent operation process is avoided, because the contact surface of the L-shaped clamping part 11 and the auricular cartilage sample 9 is a smooth plane, and the second handle 2 and the auricular cartilage sample 9 are provided with the elastomer gasket 8, the auricular cartilage sample 9 is ensured not to be damaged under the clamping action; then, the bottoms of the L-shaped clamping part 11 and the inverted L-shaped clamping part 21 are used as supporting surfaces, the knife handle 4 is rotated, and the blade 5 is driven to cut the auricular cartilage sample 9, so that the problems that the existing forceps holder instrument and a cutter used for thinning are respectively separated, and the blade is difficult to be completely parallel to a cartilage plane, the thickness is uncontrollable and the thickness is inconsistent under the control of a bare hand are solved; meanwhile, cutters with different shapes and sizes can be replaced according to the cutting shapes required by the auricular cartilage samples 9. After the cutting is completed, the ratchet 71 and the ratchet fastener 72 are opened, the first handle 1 and the second handle 2 are released, and the cut auricular cartilage sample 9 is taken out.

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

Claims (7)

1. An auricular cartilage thinning device is characterized by comprising a clamping part and a cutting part,

the clamping part consists of a first handle and a second handle, the middle parts of the first handle and the second handle are connected together through a handle rotating shaft, the end part of the first handle is an L-shaped clamping part, and a handle base is arranged between the handle rotating shaft and the L-shaped clamping part; the end part of the second handle is an inverted L-shaped clamping part matched with the L-shaped clamping part;

the cutting part consists of a handle, a blade and a handle knob, one end of the handle is provided with a rotating hole, and the middle part of the handle is provided with a blade buckle; the blade is provided with a blade clamping groove and is arranged on a blade buckle of the knife handle through the blade clamping groove; the hilt knob is provided with a hilt clamping groove, the hilt is installed on the hilt clamping groove and can rotate by taking the hilt clamping groove as an axis, and the hilt knob is installed on the hilt base.

2. The auricular cartilage thinning device according to claim 1, wherein the first handle and the second handle are further provided with a ratchet fastener and a ratchet respectively on the other side of the handle base.

3. The auricular cartilage thinning device according to claim 1, wherein the contact surface of the L-shaped clamping part of the first handle and the auricular cartilage is a smooth plane, and the inverted L-shaped clamping part of the second handle is provided with an elastomer gasket.

4. The auricular cartilage thinning device according to claim 1, wherein the handle is provided with an anti-slip texture at an end thereof away from the rotation hole.

5. The auricular cartilage thinning device as claimed in claim 1, wherein the handle knob is provided at an end thereof with equidistant threads, and the axial position of the blade is adjusted by rotating the handle knob, thereby adjusting the cutting thickness of the auricular cartilage.

6. The auricular cartilage thinning device according to claim 5, wherein the manual rotation part of the handle knob is provided with an anti-slip texture.

7. The auricular cartilage thinning device according to claim 5, wherein the handle knob is provided with a circumference scale, and the handle base is provided with a marking line.

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