CN109909904B

CN109909904B - Clinical multipurpose pliers

Info

Publication number: CN109909904B
Application number: CN201910183378.2A
Authority: CN
Inventors: 崔永芹
Original assignee: Wulian People's Hospital
Current assignee: Wulian People's Hospital
Priority date: 2019-03-12
Filing date: 2019-03-12
Publication date: 2021-01-29
Anticipated expiration: 2039-03-12
Also published as: CN109909904A

Abstract

The invention discloses a clinical multipurpose clamp, which belongs to the field of medical appliances, and comprises an upper clamp and a lower clamp, and is characterized in that: the back half part of the clamp piece is provided with a handle; two sides of the front half part of the clamp piece are respectively provided with an arc-shaped rack; the arc-shaped racks on the same sides of the two clamp pieces are meshed with each other; the inner arc surfaces of the arc-shaped racks are respectively provided with a wheel, and two ends of an upper wheel shaft of each wheel are respectively arranged on the wheel plate; a vertical cylinder structure is arranged at the position, located at the rear ends of the two arc-shaped racks, on the clamp sheet, and a ratchet box penetrates through the vertical through hole; a pressing plate is arranged in the ratchet box, and a second spring is arranged between the upper part of the pressing plate and the upper wall of the ratchet box. Compared with the prior art have the characteristics that the function is various, clamping-force is strong.

Description

Clinical multipurpose pliers

Technical Field

The invention relates to a medical appliance, in particular to a multipurpose clamp suitable for clinical use.

Background

Pliers, a hand tool for gripping, securing an article or for applying radial forces. The pliers in the machining industry have different shapes and specifications and are suitable for different occasions, so that a plurality of pliers with different shapes and models are mostly arranged in the tool kit in the machining or maintenance industry. However, in places where the requirements for sterilization are strict, such as medical treatment, medicine, inspection, food, and the like, especially in the clinical medical industry, the sterilization of a plurality of instruments is performed by a plurality of forceps having different shapes and types, and the sterilization of a plurality of sterilization packs is required because the sterilization packs have an upper limit. Therefore, how to adapt one forceps to different outer diameters and even special-shaped instruments to realize different functions becomes an element of the forceps design in the field.

Disclosure of Invention

The technical task of the invention is to provide a clinical multipurpose clamp with multiple functions and strong clamping force aiming at the defects of the prior art.

The technical scheme for solving the technical problem is as follows: a clinical multipurpose clamp comprises an upper clamp sheet and a lower clamp sheet; the method is characterized in that: the back half part of the clamp piece is provided with a handle; two sides of the front half part of the clamp piece are respectively provided with an arc-shaped rack, the tooth surface of the arc-shaped rack is positioned on the outer arc surface of the rack, and the inner side direction of the rack is provided with a strip-shaped hole; the arc-shaped racks on the same sides of the two clamp pieces are meshed with each other; the inner arc surfaces of the arc-shaped racks are respectively provided with a wheel, two ends of an upper wheel shaft of the wheel are respectively arranged on wheel plates, two wheels on the arc-shaped racks on the same side on the two clamping sheets are jointly arranged on the same group of wheel plates, the two wheel plates in the same group are respectively positioned on two sides of the racks, one wheel plate is positioned on the outer side of the clamping sheet, and the other wheel plate penetrates through the strip-shaped hole; a first spring is arranged between one of the wheel plates and the rear end of the arc-shaped rack; a vertical cylinder structure is arranged at the position, located at the rear ends of the two arc-shaped racks, on the clamp sheet, and openings are formed in the lower ends of the side walls on the left side and the right side of the cylinder structure; the middle of the barrel is provided with a vertical through hole, the interior of the vertical through hole penetrates through the ratchet box, the ratchet box comprises an upper wall and a side wall, the side wall is provided with a spring piece, and the outer side surface of the spring piece is provided with a ratchet; ratchets matched with the spring pieces are arranged on the inner wall of the barrel structure at the positions corresponding to the spring pieces, and the tooth directions of the two groups of ratchets meet the condition that after the two groups of ratchets are meshed, the ratchet box can only move downwards in one direction but can not move upwards, and the spring pieces are mutually separated from the ratchets on the barrel structure in a natural state; a pressing plate is arranged in the ratchet box, and a second spring is arranged between the upper part of the pressing plate and the upper wall of the ratchet box; the outer edge of the pressing plate and the inner side face of the spring piece are provided with mutually matched inclined planes, and the direction of the inclined planes meets the requirement that the spring piece can be pushed outwards when the pressing plate moves upwards.

Compared with the prior art, the invention has the following outstanding beneficial effects:

1. the clamp is suitable for clamping special-shaped instruments with different diameters and appearances by matching the second spring with the pressing plate, the situation that one hand cannot be held and two hands are required to operate forcibly together due to overlarge outer diameter of the instrument can be avoided, and the one-hand operation of medical staff is ensured;

2. the function is various: the non-full-force clamp can be used for effectively clamping special-shaped instruments, the slight clamp can be used for indentation damage and opening of traditional Chinese medicine wax pills after medical supplies are used, and the non-full-force clamp can be used for crushing hard traditional Chinese medicines (such as minerals, gelatin blocks and crude drugs which are not sliced) and crushing narcotic drugs.

3. Reasonable structure, low cost and suitability for popularization.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a cross-sectional view of the present invention.

Detailed Description

The invention is further described with reference to the drawings and the detailed description.

For convenience of description, the direction of one end of the handle 6 is set to be rear, and the direction of one end of the arc-shaped rack 7 is set to be front; when describing the position relationship of the internal structure of the clamp piece in the vertical direction, the position relationship of the upper clamp piece is taken as the standard, and the vertical position relationship of the lower clamp piece is opposite to the description in the specification.

As shown in fig. 1 and 2, the present invention includes an upper and a lower clamp piece. The back half part of the clamp piece is provided with a handle 6 for hand-held operation. Two sides of the front half part of the clamp piece are respectively provided with an arc-shaped rack 7, the tooth surface is positioned on the outer arc surface of the rack 7 (namely the surface which bulges outwards), and the inner side direction of the rack 7 (namely the direction facing to the axis of the clamp piece) is provided with a strip-shaped hole 2. The arc-shaped racks 7 on the same side of the two clamp pieces are meshed with each other. The inner arc surfaces of the arc-shaped racks 7 are respectively provided with a wheel 1, two ends of an upper wheel shaft of each wheel 1 are respectively arranged on wheel plates 9, two wheels 1 on the arc-shaped racks 7 on the same side on the two pliers slices are jointly arranged on the same group of wheel plates 9, the same group means that the two wheel plates 9 on two sides of each wheel 1 are in a group, the two wheel plates 9 are respectively positioned on two sides of each rack 7, one wheel plate is positioned on the outer side of each pliers slice, and the other wheel plate 9 penetrates through the strip-shaped hole 2. A first spring 8 is arranged between one wheel plate 9 and the rear end of the arc-shaped rack 7, and the first spring 8 is used for providing backward pulling force for the wheel plate 9.

The position that lies in 7 rear ends of two arc racks on the pincers piece is equipped with vertical barrel 5 structure, and the lower extreme of the lateral wall of the 5 structure left and right sides of barrel is equipped with the opening, so that transversely place rod-like structure's article through this opening. The middle of the barrel body 5 is provided with a vertical through hole, the ratchet box 3 penetrates through the vertical through hole, the ratchet box 3 comprises an upper wall and a side wall, the side wall is provided with a spring piece 4, and the outer side surface of the spring piece 4 is provided with ratchets, so that the spring piece 4 forms a ratchet structure. The inner wall of the barrel 5 structure is provided with ratchets matched with the spring piece 4 at the position corresponding to the spring piece 4, the tooth directions of the two groups of ratchets meet the requirement that the ratchet box 3 can only move downwards in one direction but can not move upwards after the two groups of ratchets are meshed, the spring piece 4 is mutually separated from the ratchets on the barrel 5 structure in a natural state and can not be meshed, and the two groups of ratchets can be meshed when the spring piece 4 is subjected to an outward acting force. The ratchet box 3 is internally provided with a pressing plate 11, a second spring 10 is arranged between the upper part of the pressing plate 11 and the upper wall of the ratchet box 3, and the pressing plate 11 is pushed downwards by the second spring 10. A mutually matched inclined surface 12 is arranged between the outer edge of the pressing plate 11 and the inner side surface of the spring piece 4, and the direction of the inclined surface 12 is enough to push the spring piece 4 outwards when the pressing plate 11 moves upwards and to enable the spring piece 4 and the ratchet on the structure of the barrel 5 to be mutually meshed.

The operation flow is as follows: when the device is used, the object to be clamped 13 is placed between the two pressing plates 11, the two ratchet boxes 3 are pushed towards the middle direction respectively, the spring piece 4 is pushed out outwards under the action of the pressing plates 11, so that the position relation between the ratchet boxes 3 and the barrel 5 structure is fixed, the object to be clamped 13 is pressed, the two pressing plates 11 only need to move in a small range to crush the object to be clamped 13, and therefore the handle 6 rotates by a small angle in the device, and a large opening angle is not needed between the two handles 6. And because the position of the ratchet box 3 can be moved, the handle 6 can be opened with a small opening angle no matter what the size of the object to be clamped 13 is, so that the handle 6 can be held by one hand in the invention. In the invention, two pliers sheets form a lever structure, the fulcrum of the lever structure is positioned at the position of the wheel 1, and the wheel 1 is positioned at the position of the meshing of the two racks 7, because the distance between the inner arc surfaces of the two racks 7 is minimum at the position, the rack 7 and the meshing point move from front to back in the process of gripping the handle 6, the wheel 1 moves back along with the rack, namely the fulcrum moves back, the length of the resistance arm is smaller and smaller in the process, the resistance arm is smaller and more labor-saving in the lever, and therefore, larger acting force can be easily applied to the object to be clamped 13, and the object to be clamped 13 can be crushed. In whole application of force in-process, the resistance is less in earlier stage, can make clamp plate 11 get great motion amplitude through longer resistance arm, and later stage resistance increases, can obtain great effort through shorter resistance arm, just also can open with less grip and treat clamping object 13. Therefore, the handle 6 can be held by one hand to open the object to be clamped 13, and the operation can be as follows in the actual use process: the object to be clamped 13 is placed and taken by the left hand, the handle 6 is held by the right hand with one hand, and the whole process of opening the object to be clamped 13 is very efficient and convenient through the cooperation of the two hands. For the damage of indentation after the medical supplies are used, the opening of wax pills of traditional Chinese medicine, the crushing of hard traditional Chinese medicine (such as minerals, rubber blocks and crude drugs which are not sliced), the crushing of narcotic drugs and the like, the effect of complete crushing needs to be achieved, when the medical supplies are placed, the two ratchet boxes 3 can be pushed inwards when the opening angle of the handle 6 is relatively large, then the handle 6 is clamped, so that the two pressing plates 11 can obtain a large stroke, and the object to be clamped can be clamped and crushed by the stroke; for the clamping of the special-shaped instrument, the instrument cannot be damaged, so that after the instrument is placed in the clamping process, when the opening angle of the two handles 6 is relatively small, the two ratchet boxes 3 are pushed inwards, and then the handles 6 are clamped, namely, the two handles 6 are completely closed, and because the stroke of the two pressure plates 11 is small in the process, the small stroke is not enough to damage the instrument, and only the clamping effect is achieved.

It should be noted that while the invention has been described in detail with respect to specific embodiments thereof, it will be apparent to those skilled in the art that various obvious changes can be made therein without departing from the spirit and scope of the invention.

Claims

1. A clinical multipurpose clamp comprises an upper clamp sheet and a lower clamp sheet; the method is characterized in that: the back half part of the clamp piece is provided with a handle; two sides of the front half part of the clamp piece are respectively provided with an arc-shaped rack, the tooth surface of the arc-shaped rack is positioned on the outer arc surface of the rack, and the inner side direction of the rack is provided with a strip-shaped hole; the arc-shaped racks on the same sides of the two clamp pieces are meshed with each other; the inner arc surfaces of the arc-shaped racks are respectively provided with a wheel, two ends of an upper wheel shaft of the wheel are respectively arranged on wheel plates, two wheels on the arc-shaped racks on the same side on the two clamping sheets are jointly arranged on the same group of wheel plates, the two wheel plates in the same group are respectively positioned on two sides of the racks, one wheel plate is positioned on the outer side of the clamping sheet, and the other wheel plate penetrates through the strip-shaped hole; a first spring is arranged between one of the wheel plates and the rear end of the arc-shaped rack; a vertical cylinder structure is arranged at the position, located at the rear ends of the two arc-shaped racks, on the clamp sheet, and openings are formed in the lower ends of the side walls on the left side and the right side of the cylinder structure; the middle of the barrel is provided with a vertical through hole, the interior of the vertical through hole penetrates through the ratchet box, the ratchet box comprises an upper wall and a side wall, the side wall is provided with a spring piece, and the outer side surface of the spring piece is provided with a ratchet; ratchets matched with the spring pieces are arranged on the inner wall of the barrel structure at the positions corresponding to the spring pieces, and the tooth directions of the two groups of ratchets meet the condition that after the two groups of ratchets are meshed, the ratchet box can only move downwards in one direction but can not move upwards, and the spring pieces are mutually separated from the ratchets on the barrel structure in a natural state; a pressing plate is arranged in the ratchet box, and a second spring is arranged between the upper part of the pressing plate and the upper wall of the ratchet box; the outer edge of the pressing plate and the inner side face of the spring piece are provided with mutually matched inclined planes, and the direction of the inclined planes meets the requirement that the spring piece can be pushed outwards when the pressing plate moves upwards.