CN217244680U - Novel small needle knife for hallux valgus operation treatment - Google Patents

Abstract

The utility model discloses a novel small needle knife for thumb eversion operation treatment, which comprises a knife handle and a knife handle, wherein the knife handle is positioned at the front end of the knife handle and is movably and detachably arranged with the knife handle; the arc angle gradually contracted from the position of the cutter bar to the position of the cutter blade on the cutter blade is controlled to be 15-65 degrees; the overall shape of the blades on the two sides of the blade is designed into a shovel shape, and the circular arcs on the two sides of the blade cover the intersection of the blades on the two sides; the knife handle is designed to be a conical body, and one end of the knife handle is fixedly provided with a fixing hole connected with the knife handle; the knife handle and the knife handle are connected into an integral structure through a screw assembly or an insertion mode.

Description

Novel small needle knife for hallux valgus operation treatment

Technical Field

The utility model relates to the technical field of medical treatment, in particular to a novel small needle knife for hallux valgus operation treatment.

Background

Hallux valgus deformity refers to the lateral deflection of the thumb at the first metatarsal-finger joint. Hallux valgus is one of the common deformities of the foot that is therapeutically challenging.

At present, the hallux valgus operation treatment needs osteotomy orthopedic operation, and the release of the soft tissue on the outer side of the thumb is particularly important as a part of the orthopedic operation.

The loosening method comprises the following steps: the blade is arranged between the metatarsal side of the first metatarsal head and the dorsal side of fibula, is free to the proximal phalanx base, and is pressed against the adductor pollicis radiatus in a turning way to the outer side and is released from the phalanx base; further loosening the adductor hallucis until the flexor hallucis brevis, exposing the transverse ligament between the metatarsals and cutting off the transverse ligament, so as to avoid damaging the underlying nerve and blood vessel; the lateral metatarsophalangeal joint capsule is punctured with a plurality of small openings, and the lateral joint capsule is torn by an external force towards the inner side.

Aiming at the characteristics of the operation, the operation space is small, the requirement on the visual field is extremely high, and the original operation prop cannot meet the use requirement from the aspects of functions and applicability when in use

In view of the above, the applicant has devised in particular a small needle-knife adapted to hallux valgus deformity, which is used to perform a ligament-stripping operation after stripping the surrounding tissue in the incision direction and reaching the lesion.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel little needle sword is used in operation treatment of hallux valgus to solve the problem that provides among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a novel little needle sword is used in hallux valgus operation treatment, includes the handle of a knife, still including being located the handle of a knife front end with handle of a knife activity demountable installation's handle of a knife, install the cutter body on the handle of a knife, the shape of cutter point of cutter head area in cutter body front end both sides, and both sides cutting edge intersection possess the cutter point.

Furthermore, the cutter body is divided into a cutter bar and a blade, and the extension part of the cutter bar from the cutter bar to the blade is in a gradually-contracted arc design.

Further, the arc angle of the blade gradually shrinking from the position of the cutter rod to the position of the blade is controlled to be 15-65 degrees.

Furthermore, the overall shape of the blades on the two sides of the blade is designed into a shovel shape, and the circular arcs on the two sides cover the intersection of the blades on the two sides.

Furthermore, the knife handle is designed to be a conical body, and one end of the knife handle is fixedly provided with a fixing hole connected with the knife handle.

Furthermore, the knife handle and the knife handle are connected into an integral structure in a screw installation or insertion connection mode.

Furthermore, a cutter body inserting hole is fixedly formed in one end, far away from the fixing hole, of the cutter handle, and the depth of the inserting hole is the same as the length of the cutter rod.

Furthermore, a pouring hole communicated with the inserting hole is fixedly formed in the conical surface of the cutter handle, and the pouring holes are arranged at intervals.

Furthermore, the upper side and the lower side of the blade on the cutter body are processed into wedge angles, and the exposed length of the cutter bar and the fixed body after assembly is controlled to be 5-15 mm.

Compared with the prior art, the method has the following beneficial effects: the utility model discloses convenient to use, it is more easy to control, can wear when using, stab the operation, there are two cutting edges in its upper and lower both sides, can accomplish the cutting action of two directions in front and back in the small range, its special radian shrink design can reduce the field of vision that blocks the cutting position when using, improve its security, the intensity of cutter body can also be improved to this structure, its the place ahead tool bit knife tip can make it possess simple ability of wearing, stabbing, its width is through special design, the width that is fit for the operation in the required cutting tissue, and it possesses upper and lower both sides cutting edge, can accomplish the cutting action of two directions in front and back in the small range; the contracted neck part can reduce the visual field obstruction of the operation part and improve the safety of the operation.

Drawings

FIG. 1 is a perspective view of the whole body of the present invention;

fig. 2 is a partially enlarged schematic view of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, a novel small needle knife for hallux valgus surgical treatment comprises a knife handle 1 and a knife handle 2 which is movably and detachably mounted on the front end of the knife handle 1 and the knife handle 1, wherein a knife body 3 is mounted on the knife handle 2, the knife edges on two sides of the front end of the knife body 3 are in the shape of a knife point, and the knife points are arranged at the intersection of the knife edges on the two sides.

The hilt 1 is designed into a cylindrical structure and is formed by adopting a sectional splicing mode, and each section of the splicing mode is connected by adopting a screw.

In order to facilitate the use of the knife, the unnecessary visual field loss caused by the volume of the knife itself in the operation can be reduced, thereby improving the safety of the operation, and the structural design can improve the overall strength of the blade, the utility model discloses a further preferred implementation is, the knife body 3 is divided into the cutter bar 5 and the blade two parts, and is the arc-shaped design of gradual shrinkage from the cutter bar 5 position to the blade extension.

In order to reduce unnecessary visual field loss caused by the volume of the knife in operation, the invention further prefers that the arc angle of the blade gradually contracted from the position of the knife rod 5 to the position of the blade is controlled to be 15-65 deg.

In order to facilitate the smooth operation under the user state, the utility model discloses in possess both sides cutting edge from top to bottom, can accomplish the cutting action of two directions in the front and back of within range, the further preferred embodiment of the utility model is, the whole shape of both sides cutting edge of blade designs into the shovel type, and its both sides arc covers to both sides cutting edge junction.

The blade head of the blade is provided with a tool tip, so that the blade can be used for piercing and stabbing, and the two cutting edges are arranged on the upper side and the lower side of the blade, so that the cutting action in the front and back directions in a small range can be realized.

In order to facilitate the whole body to be detached or replaced in the using state, the utility model discloses a further preferred embodiment is, handle of a knife 2 is the design of conical body structure, just one end of handle of a knife 2 is fixed open have with the fixed orifices that handle of a knife 1 is connected.

The knife handle 2 and the knife handle 1 are connected into an integral structure in a screw installation or insertion mode.

In order to facilitate the assembly of the cutter bar in a use state, the exposed length of the assembled cutter bar is controlled to be about 10mm, the exposed length of the blade of the assembled cutter bar is controlled to reduce the blockage of the cutter handle to the visual field, one end, far away from the fixing hole, of the cutter handle 2 is fixedly provided with a cutter body 3 inserting hole, and the depth of the inserting hole is the same as the length of the cutter bar 5.

In order to facilitate under the user state, the cutter arbor wholly inserts the 15mm degree of depth of handle of a knife, adopts the glue of high strength to bond, ensures whole firmness, the further preferred embodiment of the utility model is, fixed opening has the communicating pouring hole 4 with the spliced eye on the conical surface of handle of a knife 2, and 4 intervals in pouring hole set up.

The pouring hole is one of a square hole, an elliptical hole or a polygonal hole.

In order to facilitate the control of the exposed length of the blade to reduce the blockage of the cutter bar to the visual field in the use state, the utility model discloses a further preferred embodiment is, the processing of the upper and lower sides of the blade on the cutter body 3 is in the shape of a wedge angle, and the exposed length of the cutter bar 5 and the fixed body after assembly is controlled at 5-15 mm.

The utility model designs the cutter into the shape of the cutter points of the cutter blade zones at two sides aiming at the cutting of the tissues in the operation, the cutter point of the cutter head in front of the cutter can ensure that the cutter head has simple penetrating and puncturing capability, the width of the cutter head is specially designed to be suitable for the width of the tissues to be cut in the operation, and the cutter head has the upper and lower cutter edges, so that the cutting action in the front and back directions in a small range can be realized; the contracted neck part can reduce the visual field obstruction of the operation part and improve the safety of the operation.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. A novel small needle knife for thumb valgus operation treatment comprises a knife handle (1) and is characterized in that: the tool is characterized by further comprising a tool handle (2) which is located at the front end of the tool handle (1) and movably and detachably mounted with the tool handle (1), a tool body (3) is mounted on the tool handle (2), the shape of a tool nose of a tool edge zone at two sides of the front end of the tool body (3) is the same as that of the tool nose at the blade edge zone at two sides, and the intersection of the tool noses of the tool edges at the two sides is provided with the tool nose.

2. A novel small needle knife for hallux valgus surgery treatment according to claim 1, characterized in that: the cutter body (3) is divided into a cutter bar (5) and a blade, and the cutter bar (5) is in an arc shape design which gradually shrinks towards the extension part of the blade.

3. A novel small needle knife for hallux valgus surgery treatment according to claim 2, characterized in that: the arc angle gradually contracted from the position of the cutter bar (5) to the position of the cutter blade on the cutter blade is controlled to be 15-65 degrees.

4. A novel small needle knife for thumb valgus surgery treatment according to claim 3, characterized in that: the overall shape of the blades on the two sides of the blade is designed into a shovel shape, and the arc shapes on the two sides of the blade cover the intersection of the blades on the two sides.

5. A novel small needle knife for hallux valgus surgery treatment according to claim 1, characterized in that: the knife handle (2) is designed to be a conical body structure, and a fixing hole connected with the knife handle (1) is fixedly formed in one end of the knife handle (2).

6. A novel small needle knife for thumb valgus surgery treatment according to claim 5, characterized in that: the knife handle (2) and the knife handle (1) are connected into an integral structure in a screw installation or insertion mode.

7. A novel small needle knife for thumb valgus surgery treatment according to claim 6, characterized in that: one end of the knife handle (2) far away from the fixing hole is fixedly provided with a knife body (3) inserting hole, and the depth of the inserting hole is the same as the length of the knife rod (5).

8. The new small needle knife for thumb valgus surgical treatment according to claim 7, characterized in that: and the conical surface of the knife handle (2) is fixedly provided with pouring holes (4) communicated with the inserting holes, and the pouring holes (4) are arranged at intervals.

9. A novel small needle knife for thumb valgus surgery treatment according to claim 3, characterized in that: the upper side and the lower side of the blade on the cutter body (3) are processed into wedge angles, and the exposed length of the cutter bar (5) and the fixed body after assembly is controlled to be 5-15 mm.

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