Double-joint rongeur

Abstract

The double-joint rongeur comprises rongeur handles, a left rongeur head, a right rongeur handle, a right rongeur head, a left supporting spring and a right supporting spring, the left rongeur handle and the right rongeur handle are hinged through rivets, and the double-joint rongeur is characterized in that the upper end of the left rongeur handle is connected with the lower end of the left rongeur head through a first connecting screw; the upper end of the right forceps handle is connected with the lower end of the right forceps head through a second connecting screw, the middle of the left forceps head is connected with the middle of the right forceps head through a gill shaft screw, and the front ends of the left forceps head and the right forceps head are integrally cast with bone rongeur sharp blade ends. The sharp blade end of the rongeur is bent inwards, and the included angle between the sharp blade end of the rongeur and the central axis of the left rongeur head or the central axis of the right rongeur head is 15-25 degrees. The double-joint rongeur has the advantages of being simple in structure, accurate in positioning and high in stability.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of medical instruments, in particular to a double jointed rongeur. BACKGROUND

[0002] Medical instrument refers to the instrument, equipment, appliance, in-vitro diagnostic reagent and calibrant, material and other similar or related articles for human body directly or indirectly, at present, the traditional rongeur on clinic is mostly single joint structure modeling, is composed by left and right handle, spring piece and rack, simple structure, stability is not high, simultaneously, the head of handle needs to be bent, thus, the manufacturing difficulty is increased, and there is not firm in the use of the rongeur, and it is not easy to take some special parts, and the positioning is not accurate, and it is easy to cause slippage, and the surgical risk is increased, and the double jointed rongeur in the prior art has the problem of complex structure. SUMMARY

[0003] In order to solve the above technical problems, the utility model provides a double jointed rongeur, which is simple in structure, easy to open and close the mouth, not inclined, accurate in positioning, good in product stability, small in risk and firm in taking.

[0004] The utility model adopts one technical scheme, which is a double jointed rongeur, which comprises: a left handle, a left head, a right handle, a right head, a left spring, and a right spring, the left handle and the right handle are hinged by a willow nail, the upper end of the left handle is connected with the lower end of the left head by a first connecting screw, the upper end of the right handle is connected with the lower end of the right head by a second connecting screw, the middle part of the left head and the right head is connected by a gill shaft screw, the front end of the left head and the right head is integrally cast with a rongeur sharp blade end, and the included angle between the rongeur sharp blade end and the central axis of the left head or the right head is 15-25 degrees.

[0005] In a preferred embodiment of the utility model, the lower end of the left spring is fixedly connected with the left handle by a left spring screw, the lower end of the right spring is fixedly connected with the right handle by a right spring screw, and the upper ends of the left spring and the right spring intersect and contact.

[0006] In a preferred embodiment of the utility model, the included angle between the rongeur sharp blade end and the central axis of the left head or the right head is 20 degrees.

[0007] In a preferred embodiment of the utility model, the left handle and the right handle are provided with a hand holding limiting part.

[0008] In a preferred embodiment of the utility model, the outer side surface of the left handle and the right handle is provided with an anti-skid structure below the hand holding limiting part.

[0009] In a preferred embodiment of the present invention, the anti-slip structure is a rubber-coated anti-slip tooth portion.

[0010] The beneficial effects of the utility model are as follows: the practical double-joint bone rongeur has a simple structure, the jaws can be opened and closed easily and flexibly without deflection, the surface has no cracks, the cutting edge is sharp and complete, the tip of the bone rongeur can be completely closed when biting, the clamping is firm, the positioning is accurate, and the biting and cutting can be smooth. The product has good stability, low risk, easy operation and a wide field of vision. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. Among them:

[0012] Fig. 1 This is a schematic diagram of the structure of the double-joint rongeur of the utility model when it is opened;

[0013] Fig. 2 This is a schematic diagram of the structure of the double-joint rongeur of the present invention during compression. DETAILED DESCRIPTION

[0014] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0015] See also Figs. 1-2 The utility model is a double-jointed bone rongeur, comprising: a left pliers handle 1, a left pliers head 2, a right pliers handle 3, a right pliers head 4, a left support spring 5, and a right support spring 6. The left pliers handle and the right pliers handle are hinged by a rivet 15. The upper end of the left pliers handle is connected to the lower end of the left pliers head by a first connecting screw 7, and the upper end of the right pliers handle is connected to the lower end of the right pliers head by a second connecting screw 8. The middle parts of the left pliers head and the right pliers head are connected by a gill axis screw 9. The gill axis screw should not be loose as much as possible, so that the swing between the pliers head and the pliers handle is less than 0. .1mm, better stability, the front end of the left and right pliers heads are integrally cast with a pointed edge 10 of the bone-holding pliers, the pointed edge of the bone-holding pliers is bent inwardly and the angle formed between it and the central axis of the left or right pliers head is 15 degrees to 25 degrees, preferably, the pointed edge of the bone-holding pliers is bent inwardly and the angle formed between it and the central axis of the left or right pliers head is 20 degrees, the jaws are easy and flexible to open and close without deflection, the surface is free of cracks, the cutting edge is sharp and complete, the pointed edge of the bone-holding pliers can be completely closed when biting, and the clamp is firm.

[0016] Specifically, the lower end of the left supporting spring is fixedly connected with the left handle through the left supporting spring screw 11, the lower end of the right supporting spring is fixedly connected with the right handle through the right supporting spring screw 12, the upper ends of the left supporting spring and the right supporting spring cross and contact, the elastic force of the supporting spring can automatically open and restore to the original state after the blade shears, and no jamming occurs, in the normal state, under the action of the left supporting spring and the right supporting spring, the jaw is opened, the operator holds the anti-slip structure of the left handle and the right handle, and then applies pressure inward to make the left handle and the right handle rotate around the willow nail, and then the upper ends of the left handle and the right handle are opened, so that the left handle and the right handle connected therewith move inward to clamp the object, and the operation is simple and convenient.

[0017] Specifically, the left handle and the right handle are provided with a hand holding limiting part 13, and the outer side surface of the left handle and the right handle is provided with an anti-slip structure 14 below the hand holding limiting part, wherein the anti-slip structure is a rubber-coated anti-slip tooth part, and the anti-slip tooth part can be a circular anti-slip groove, an arc-shaped anti-slip groove or anti-slip lines or a combination of the three, so as to increase the friction and hold relatively stably.

[0018] The utility model discloses the beneficial effect is: simple structure, the jaw opens and closes easily and flexibly, and will not be inclined, and the outer surface has no crack, and the blade edge is sharp and complete, and the rongeur tip blade end can be completely closed when occlusion, and the pincer is firm, accurate positioning, can smoothly bite and cut, and the product has good stability, small risk, convenient operation and wide visual field.

[0019] The above-mentioned is only the embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process conversion using the utility model specification content, or direct or indirect application in other related technical fields, are all included in the patent protection range of the utility model.

Claims

1. A double-jointed rongeur, comprising: A left pliers handle, a left pliers head, a right pliers handle, a right pliers head, a left support spring, and a right support spring. The left pliers handle and the right pliers handle are hinged with rivets, and are characterized in that the upper end of the left pliers handle is connected to the lower end of the left pliers head by a first connecting screw, the upper end of the right pliers handle is connected to the lower end of the right pliers head by a second connecting screw, the middle parts of the left pliers head and the right pliers head are connected by a gill axis screw, and the front ends of the left pliers head and the right pliers head are integrally cast with a bone-holding forceps tip, and the angle formed between the inward bending of the bone-holding forceps tip and the central axis of the left pliers head or the right pliers head is 15 degrees to 25 degrees.

2. A double-joint rongeur according to claim 1, characterized in that: The lower end of the left support spring is fixedly connected to the left clamp handle through a left support spring screw, and the lower end of the right support spring is fixedly connected to the right clamp handle through a right support spring screw. The upper ends of the left support spring and the right support spring are in cross contact.

3. The double-joint rongeur according to claim 1, characterized in that: The angle formed between the inwardly bent tip of the rongeur and the central axis of the left or right pliers head is 20 degrees.

4. The double-jointed rongeur according to claim 1, characterized in that: The left clamp handle and the right clamp handle are provided with a hand-holding limit portion.

5. The double-joint rongeur according to claim 4, characterized in that: The outer side surfaces of the left and right clamp handles are provided with anti-slip structures below the hand-held limiting portion.

6. The double-joint rongeur according to claim 5, characterized in that: The anti-slip structure is a rubber-coated anti-slip tooth portion.

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