CN104107083A - Trachea foreign body tweezers and tweezer body - Google Patents

Trachea foreign body tweezers and tweezer body Download PDF

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Publication number
CN104107083A
CN104107083A CN201410379921.3A CN201410379921A CN104107083A CN 104107083 A CN104107083 A CN 104107083A CN 201410379921 A CN201410379921 A CN 201410379921A CN 104107083 A CN104107083 A CN 104107083A
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CN
China
Prior art keywords
jaw
joint face
piston
support ring
caliper
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Granted
Application number
CN201410379921.3A
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Chinese (zh)
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CN104107083B (en
Inventor
李峰
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Qiu Zhaoyou
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Individual
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Priority to CN201510980141.9A priority Critical patent/CN105434012B/en
Priority to CN201510979363.9A priority patent/CN105615961B/en
Priority to CN201410379921.3A priority patent/CN104107083B/en
Priority to CN201510974396.4A priority patent/CN105559863B/en
Publication of CN104107083A publication Critical patent/CN104107083A/en
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Publication of CN104107083B publication Critical patent/CN104107083B/en
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/50—Instruments, other than pincettes or toothpicks, for removing foreign bodies from the human body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/24—Surgical instruments, devices or methods, e.g. tourniquets for use in the oral cavity, larynx, bronchial passages or nose; Tongue scrapers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/28—Surgical forceps
    • A61B17/29—Forceps for use in minimally invasive surgery
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/28—Surgical forceps
    • A61B2017/2808—Clamp, e.g. towel clamp
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/28—Surgical forceps
    • A61B17/29—Forceps for use in minimally invasive surgery
    • A61B17/2909—Handles
    • A61B2017/2912—Handles transmission of forces to actuating rod or piston
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/28—Surgical forceps
    • A61B17/29—Forceps for use in minimally invasive surgery
    • A61B17/2909—Handles
    • A61B2017/2912—Handles transmission of forces to actuating rod or piston
    • A61B2017/2919—Handles transmission of forces to actuating rod or piston details of linkages or pivot points
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/28—Surgical forceps
    • A61B17/29—Forceps for use in minimally invasive surgery
    • A61B2017/2926—Details of heads or jaws
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/28—Surgical forceps
    • A61B17/29—Forceps for use in minimally invasive surgery
    • A61B2017/2926—Details of heads or jaws
    • A61B2017/2945—Curved jaws

Abstract

The invention discloses trachea foreign body tweezers and a tweezer body. The tweezer body is integrally molded by use of elastic rubber or plastics; the tweezer body is structurally composed of a circularly tubular pipe joint b, a circularly tubular support ring, a spherical surface-shaped claw connecting surface and three claws, all of which are orderly and integrally connected together; the three claws are evenly connected to the external surface of the claw connecting surface and located in the same circle; a piston body is slidingly connected to the inner wall of the pipe joint b, and a connecting rod is connected between the piston body and the center of the claw connecting surface; through holes are evenly formed in the claw connecting surface and distributed in a circumferential array with the connecting rod as the center. The tweezer body is integrally molded by use of the elastic rubber or plastics, and thus is convenient to manufacture and low in manufacturing cost. The piston body is driven by negative pressure to move toward a piston barrel so that the claw connecting surface can be recessed, and then the three claws are driven by the claw connecting surface to realize a clamping action so as to clamp a foreign body.

Description

A kind of trachea foreign body forceps and caliper
Technical field
The invention belongs to medical instruments field, be specifically related to foreign body in trachea wrench structure.
Background technology
Foreign body can hinder breathing after being sucked respiratory tract by mistake, can cause suffocating even dead when serious, behind Foreign body aspiration, must take out in time.Conventionally foreign body is to use tracheascope to coordinate trachea foreign body forceps to operate, the foreign body forceps of prior art is all metal material, after cleaning and sterilizing, be repeatedly used, but the chela position of foreign body forceps is that articulated form is connected with caliper main body conventionally, there is dead angle in link position, be difficult to thoroughly clean up, have infection risk while reusing, result of use is undesirable.And if the disposable use high cost of the foreign body forceps of metal material and waste resource.
Summary of the invention
Technical problem to be solved by this invention is: the deficiency existing for prior art, provide a kind of simple in structure, and use easy to operately, gripping foreign body is reliable, and cost is low, can disposable trachea foreign body forceps.
For realizing the present invention's object, be achieved by the following technical solutions: a kind of trachea foreign body forceps, includes caliper, the connection tube of pneumatic control handle and the gentle moving joystick of connection caliper; Described caliper is by having elastic rubber or integrally moulded, and described caliper is is structurally connected and composed by the jaw joint face of the support ring of the pipe joint b of tubular, tubular, spheric and three jaws successively one; The external diameter of described support ring is greater than the external diameter of pipe joint b, and described connection tube is connected with the outer wall interference fit of pipe joint b; Described jaw joint face is outwardly, and three jaws are evenly connected on the outer surface of jaw joint face and three jaws are on a circumference, and the inner surface of described jaw forms clip tooth; In described pipe joint b and support ring, be jointly embedded with the embedded pipe of a hard, in described jaw, be embedded with the reinforcing panel of hard; The inner surface middle part of described jaw joint face forms an annular rib, and annular rib equates with three residing circle diameters of jaw, and the diameter of described annular rib is the 1/2-2/3 of support ring internal diameter; The piston that described pneumatic control handle includes a piston cylinder and coordinates with piston cylinder, is connected with end and extend out to the piston rod outside piston cylinder on piston, piston cylinder front end is connected with a pipe joint a who is connected with described connection tube; Piston cylinder lateral wall is fixedly connected with a fixed handle, and piston rod end is hinged with a flexible handle, and flexible handle middle part is hinged on fixed handle by a jointed shaft b; The end of described piston rod forms the hinge eyes of a bar hole shape, is fixedly connected with a jointed shaft a on flexible handle, and jointed shaft a is limited in described hinge eyes; Described piston diameter is 3-5 times of piston body diameter; Described flexible handle driven plunger produces negative pressure to piston cylinder rear motion, and the jaw joint face of caliper is recessed to support ring under suction function, thereby drives three jaws to draw close and be contraction state to jaw joint face center.
Described caliper is by gum elastic or integrally moulded, easy to process, and production cost is low, and smooth surface is without burr or pointed end, and the sense of discomfort that trachea is produced and damage are small; Thereby described jaw joint face is subject to negative pressure to drive generation Inward deflection to drive three jaws to do and clamps action to clamp foreign body; Described negative pressure makes piston move acquisition after piston cylinder by the flexible handle of holding with a firm grip, easy to operate; Described reinforcing panel and embedded pipe make caliper have enough mechanical strengths and jaw joint face position can have good elasticity, ensure that jaw can effectively and firmly clamp foreign body.Described annular rib makes jaw joint face be subject to negative pressure and each jaw action that can be consistent while producing indent deformation, avoids jaw action unstable and make foreign body again produce movement.Described pneumatic control handle can produce easily negative pressure and drive caliper work, easy to operate.The diameter of described annular rib is the 1/2-2/3 of support ring internal diameter, and jaw joint face has good elasticity on radial direction like this, coordinates and have enough mechanical strengths with annular rib, ensures that jaw action is strong; Described piston diameter is 3-5 times of piston body diameter; The shorter distance of flexible handle of so only need to holding with a firm grip just can make jaw joint face be subject to larger negative pressure.
The invention discloses a kind of trachea foreign body forceps caliper, described caliper is by having elastic rubber or integrally moulded, and described caliper is is structurally connected and composed by the jaw joint face of the support ring of the pipe joint b of tubular, tubular, spheric and three jaws successively one; The external diameter of described support ring is greater than the external diameter of pipe joint b, and described jaw joint face is outwardly, and three jaws are evenly connected on the outer surface of jaw joint face and three jaws are on a circumference, and the inner surface of described jaw forms clip tooth; In described pipe joint b and support ring, be jointly embedded with the embedded pipe of a hard, in described jaw, be embedded with the reinforcing panel of hard; The inner surface middle part of described jaw joint face forms an annular rib, and annular rib equates with three residing circle diameters of jaw, and the diameter of described annular rib is the 1/2-2/3 of support ring internal diameter; The jaw joint face of caliper is recessed to support ring under the suction function of pipe joint b mono-side, thereby drives three jaws to draw close and be contraction state to jaw joint face center.
Described caliper is by gum elastic or integrally moulded, easy to process, and production cost is low, and smooth surface is without burr or pointed end, and the sense of discomfort that trachea is produced and damage are small; Thereby described jaw joint face is subject to negative pressure to drive generation Inward deflection to drive three jaws to do and clamps action to clamp foreign body; Described reinforcing panel and embedded pipe make caliper have enough mechanical strengths and jaw joint face position can have good elasticity, ensure that jaw can effectively and firmly clamp foreign body.Described annular rib makes jaw joint face be subject to negative pressure and each jaw action that can be consistent while producing indent deformation, avoids jaw action unstable and make foreign body again produce movement.The diameter of described annular rib is the 1/2-2/3 of support ring internal diameter, and jaw joint face has good elasticity on radial direction like this, coordinates and have enough mechanical strengths with annular rib, ensures that jaw action is strong.
The invention also discloses another kind of trachea foreign body forceps, include caliper, the connection tube of pneumatic control handle and the gentle moving joystick of connection caliper; Described caliper is by having elastic rubber or integrally moulded, and described caliper is is structurally connected and composed by the jaw joint face of the support ring of the pipe joint b of tubular, tubular, spheric and three jaws successively one; The external diameter of described support ring is greater than the external diameter of pipe joint b, and described connection tube is connected with the outer wall interference fit of pipe joint b, and described connection tube outer surface is concordant with support ring outer surface; Described jaw joint face is outwardly, and three jaws are evenly connected on the outer surface of jaw joint face and three jaws are on a circumference, and the inner surface of described jaw forms clip tooth; In described pipe joint b and support ring, be jointly embedded with the embedded pipe of a hard, in described jaw, be embedded with the reinforcing panel of hard; Described pipe joint b inwall slidably connects a piston body, between piston body and the center of jaw joint face, is connected with a connecting rod, and the diameter of connecting rod is the 1/10-1/5 of support ring internal diameter; On described jaw joint face, evenly offer through hole, through hole is circumference array and distributes centered by connecting rod; The piston that described pneumatic control handle includes a piston cylinder and coordinates with piston cylinder, is connected with end and extend out to the piston rod outside piston cylinder on piston, piston cylinder front end is connected with a pipe joint a who is connected with described connection tube; Piston cylinder lateral wall is fixedly connected with a fixed handle, and piston rod end is hinged with a flexible handle, and flexible handle middle part is hinged on fixed handle by a jointed shaft b; The end of described piston rod forms the hinge eyes of a bar hole shape, is fixedly connected with a jointed shaft a on flexible handle, and jointed shaft a is limited in described hinge eyes; Described piston diameter is 3-5 times of piston body diameter; Described flexible handle driven plunger produces negative pressure to piston cylinder rear motion, the piston body of caliper moves to pipe joint b end under suction function, and drive jaw joint face to be recessed to support ring by connecting rod, thereby drive three jaws to draw close and be contraction state to jaw joint face center.
Described caliper is by gum elastic or integrally moulded, easy to process, and production cost is low, and smooth surface is without burr or pointed end, and the sense of discomfort that trachea is produced and damage are small; Thereby described piston body is driven to the motion of piston cylinder direction by negative pressure and drives jaw joint face indent, jaw joint face then drives three jaws to do and clamps action to clamp foreign body; Described negative pressure makes piston move acquisition after piston cylinder by the flexible handle of holding with a firm grip, easy to operate; Described through hole makes piston body both sides produce pressure differential on the one hand and is beneficial to piston body and moves, and a small amount of hydrops that foreign body stuck position may exist on the other hand can suck in the space between jaw joint face and piston body from through hole; Described reinforcing panel and embedded pipe make caliper have enough mechanical strengths and jaw joint face position can have good elasticity, ensure that jaw can effectively and firmly clamp foreign body.The diameter of described connecting rod is the 1/10-1/5 of support ring internal diameter, and connecting rod can ensure to be connected firmly with jaw joint face like this, can guarantee that again the deformation quantity of jaw joint face is larger simultaneously, makes jaw can clamp better foreign body.Described piston diameter is 3-5 times of piston body diameter; The shorter distance of flexible handle of so only need to holding with a firm grip just can make piston body be subject to larger negative pressure.
A kind of trachea foreign body forceps caliper, described caliper is by having elastic rubber or integrally moulded, and described caliper is is structurally connected and composed by the jaw joint face of the support ring of the pipe joint b of tubular, tubular, spheric and three jaws successively one; The external diameter of described support ring is greater than the external diameter of pipe joint b, and described connection tube outer surface is concordant with support ring outer surface; Described jaw joint face is outwardly, and three jaws are evenly connected on the outer surface of jaw joint face and three jaws are on a circumference, and the inner surface of described jaw forms clip tooth; In described pipe joint b and support ring, be jointly embedded with the embedded pipe of a hard, in described jaw, be embedded with the reinforcing panel of hard; Described pipe joint b inwall slidably connects a piston body, between piston body and the center of jaw joint face, is connected with a connecting rod, and the diameter of connecting rod is the 1/10-1/5 of support ring internal diameter; On described jaw joint face, evenly offer through hole, through hole is circumference array and distributes centered by connecting rod; The piston body of caliper moves to pipe joint b end under suction function, and drives jaw joint face to be recessed to support ring by connecting rod, thereby drives three jaws to draw close and be contraction state to jaw joint face center.
Described caliper is by gum elastic or integrally moulded, easy to process, and production cost is low, and smooth surface is without burr or pointed end, and the sense of discomfort that trachea is produced and damage are small; Thereby described piston body is driven to the motion of piston cylinder direction by negative pressure and drives jaw joint face indent, jaw joint face then drives three jaws to do and clamps action to clamp foreign body; Described through hole makes piston body both sides produce pressure differential on the one hand and is beneficial to piston body and moves, and a small amount of hydrops that foreign body stuck position may exist on the other hand can suck in the space between jaw joint face and piston body from through hole; Described reinforcing panel and embedded pipe make caliper have enough mechanical strengths and jaw joint face position can have good elasticity, ensure that jaw can effectively and firmly clamp foreign body.The diameter of described connecting rod is the 1/10-1/5 of support ring internal diameter, and connecting rod can ensure to be connected firmly with jaw joint face like this, can guarantee that again the deformation quantity of jaw joint face is larger simultaneously, makes jaw can clamp better foreign body.
Brief description of the drawings
Fig. 1 is overall structure schematic diagram of the present invention.
Fig. 2, Fig. 3 are the structural representations of pneumatic control handle.
Fig. 4 is the structural representation of embodiment 1,2 caliper parts.
Fig. 5, Fig. 6 are the sectional structure schematic diagrams of embodiment 1,2 caliper parts.
Fig. 7 is the structural representation of embodiment 3,4 caliper parts.
Fig. 8, Fig. 9 are the sectional structure schematic diagrams of embodiment 3,4 caliper parts.
1, pneumatic control hands handle; 11, piston cylinder; 111, pipe joint a; 12, piston rod; 121, hinge eyes; 13, flexible handle; 14, fixed handle; 131, jointed shaft a; 132, jointed shaft b; 2, connection tube; 3, caliper; 30, pipe joint b; 31, support ring; 32, jaw joint face; 321, annular rib; 322, through hole; 33, jaw; 331, clip tooth; 332, reinforce panel; 34, embedded pipe; 35, connecting rod; 36, piston body.
Detailed description of the invention
With reference to the accompanying drawings the specific embodiment of the present invention is made a detailed explanation below.
Embodiment 1
According to shown in Fig. 1 to Fig. 6, a kind of trachea foreign body forceps described in the present embodiment, includes caliper 3, pneumatic control handle 1 and connect the connection tube 2 of the gentle moving joystick of caliper; Described caliper is by having elastic rubber or integrally moulded, and described caliper is is structurally connected and composed by the jaw joint face 32 of the support ring 31 of the pipe joint b30 of tubular, tubular, spheric and three jaws 33 successively one; The external diameter of described support ring is greater than the external diameter of pipe joint b, and described connection tube 2 is connected with the outer wall interference fit of pipe joint b; Described jaw joint face is outwardly, and three jaws are evenly connected on the outer surface of jaw joint face and three jaws are on a circumference, and the diameter of described annular rib is the 1/2-2/3 of support ring internal diameter; The inner surface of described jaw forms clip tooth 331; In described pipe joint b and support ring, be jointly embedded with the embedded pipe 34 of a hard, in described jaw, be embedded with the reinforcing panel 332 of hard; The inner surface middle part of described jaw joint face forms an annular rib 321, and annular rib equates with three residing circle diameters of jaw; The piston that described pneumatic control handle includes a piston cylinder 11 and coordinates with piston cylinder, is connected with end and extend out to the piston rod 12 outside piston cylinder on piston, piston cylinder front end is connected with a pipe joint a111 who is connected with described connection tube; Piston cylinder lateral wall is fixedly connected with a fixed handle 14, and piston rod end is hinged with a flexible handle 13, and flexible handle middle part is hinged on fixed handle by a jointed shaft b132; The end of described piston rod forms the hinge eyes 121 of a bar hole shape, is fixedly connected with a jointed shaft a131 on flexible handle, and jointed shaft a is limited in described hinge eyes.Described piston diameter is 3-5 times of piston body diameter; Described flexible handle driven plunger produces negative pressure to piston cylinder rear motion, and the jaw joint face of caliper is recessed to support ring under suction function, thereby drives three jaws to draw close and be contraction state to jaw joint face center.
When use, tracheascope is stretched near position intratracheal foreign body together with caliper and connection tube, observe by tracheascope, make jaw aim at foreign body; Rotate towards fixed handle direction by pressing described flexible handle bottom, the moving piston rod of jointed shaft a coordination hinge endless belt on flexible handle moves to piston cylinder rear, thereby make generation negative pressure in piston cylinder, in the caliper being connected with piston cylinder by connection tube, be also negative pressure state, described jaw joint face inwardly concaves under suction function, thereby thereby drive three jaws to do to clamp action, foreign body is clamped, flexible handle keeps holding with a firm grip state, and caliper is drawn out to trachea outward together with connection tube.
Embodiment 2
According to shown in Fig. 4 to Fig. 6, a kind of trachea foreign body forceps caliper described in the present embodiment, described caliper 3 is by having elastic rubber or integrally moulded, and described caliper is is structurally connected and composed by the jaw joint face of the support ring of the pipe joint b of tubular, tubular, spheric and three jaws successively one; The external diameter of described support ring is greater than the external diameter of pipe joint b, and described jaw joint face is outwardly, and three jaws are evenly connected on the outer surface of jaw joint face and three jaws are on a circumference, and the inner surface of described jaw forms clip tooth; In described pipe joint b and support ring, be jointly embedded with the embedded pipe of a hard, in described jaw, be embedded with the reinforcing panel of hard; The inner surface middle part of described jaw joint face forms an annular rib, and annular rib equates with three residing circle diameters of jaw, and the diameter of described annular rib is the 1/2-2/3 of support ring internal diameter; The jaw joint face of caliper is recessed to support ring under the suction function of pipe joint b mono-side, thereby drives three jaws to draw close and be contraction state to jaw joint face center.
Embodiment 3
Shown in Fig. 1, Fig. 2, Fig. 7, Fig. 8 and Fig. 9, a kind of trachea foreign body forceps described in the present embodiment, includes caliper 3, pneumatic control handle 1 and connect the connection tube 2 of the gentle moving joystick of caliper; Described caliper is by having elastic rubber or integrally moulded, and described caliper is is structurally connected and composed by the jaw joint face 32 of the support ring 31 of the pipe joint b30 of tubular, tubular, spheric and three jaws 33 successively one; The external diameter of described support ring is greater than the external diameter of pipe joint b, and described connection tube 2 is connected with the outer wall interference fit of pipe joint b; Described jaw joint face is outwardly, and three jaws are evenly connected on the outer surface of jaw joint face and three jaws are on a circumference, and the inner surface of described jaw forms clip tooth 331; In described pipe joint b and support ring, be jointly embedded with the embedded pipe 34 of a hard, in described jaw, be embedded with the reinforcing panel 332 of hard; Described pipe joint b inwall slidably connects a piston body 36, between piston body and the center of jaw joint face, is connected with a connecting rod 35; The diameter of connecting rod is the 1/10-1/5 of support ring internal diameter; On described jaw joint face, evenly offer through hole 322, through hole is circumference array and distributes centered by connecting rod; The piston that described pneumatic control handle includes a piston cylinder 11 and coordinates with piston cylinder, is connected with end and extend out to the piston rod 12 outside piston cylinder on piston, piston cylinder front end is connected with a pipe joint a111 who is connected with described connection tube; Piston cylinder lateral wall is fixedly connected with a fixed handle 14, and piston rod end is hinged with a flexible handle 13, and flexible handle middle part is hinged on fixed handle by a jointed shaft b132; The end of described piston rod forms the hinge eyes 121 of a bar hole shape, is fixedly connected with a jointed shaft a131 on flexible handle, and jointed shaft a is limited in described hinge eyes.Described piston diameter is 3-5 times of piston body diameter; Described flexible handle driven plunger produces negative pressure to piston cylinder rear motion, the piston body of caliper moves to pipe joint b end under suction function, and drive jaw joint face to be recessed to support ring by connecting rod, thereby drive three jaws to draw close and be contraction state to jaw joint face center.
When use, tracheascope is stretched near position intratracheal foreign body together with caliper and connection tube, observe by tracheascope, make jaw aim at foreign body; Rotate towards fixed handle direction by pressing described flexible handle bottom, the moving piston rod of jointed shaft a coordination hinge endless belt on flexible handle moves to piston cylinder rear, thereby make generation negative pressure in piston cylinder, in the caliper being connected with piston cylinder by connection tube, be also negative pressure state, described piston body moves to piston cylinder direction under suction function, thereby drive jaw joint face indent, thereby jaw joint face then drives three jaws to do to clamp action foreign body is clamped, flexible handle keeps holding with a firm grip state, and caliper is drawn out to trachea outward together with connection tube.
Embodiment 3 compares with embodiment 1, owing to being provided with piston body, pulls the motion of rib joint face by piston body drive link, can ensure better strictly to keep synchronous when rib joint face drives each support rod, more reliable and more stable when gripping foreign body.
Embodiment 4
Shown in Fig. 7, Fig. 8 and Fig. 9, a kind of trachea foreign body forceps caliper described in the present embodiment, includes caliper 3, pneumatic control handle 1 and connect the connection tube 2 of the gentle moving joystick of caliper; Described caliper is by having elastic rubber or integrally moulded, and described caliper is is structurally connected and composed by the jaw joint face 32 of the support ring 31 of the pipe joint b30 of tubular, tubular, spheric and three jaws 33 successively one; The external diameter of described support ring is greater than the external diameter of pipe joint b, and described connection tube 2 is connected with the outer wall interference fit of pipe joint b; Described jaw joint face is outwardly, and three jaws are evenly connected on the outer surface of jaw joint face and three jaws are on a circumference, and the inner surface of described jaw forms clip tooth 331; In described pipe joint b and support ring, be jointly embedded with the embedded pipe 34 of a hard, in described jaw, be embedded with the reinforcing panel 332 of hard; Described pipe joint b inwall slidably connects a piston body 36, between piston body and the center of jaw joint face, is connected with a connecting rod 35; The diameter of connecting rod is the 1/10-1/5 of support ring internal diameter; On described jaw joint face, evenly offer through hole 322, through hole is circumference array and distributes centered by connecting rod.

Claims (4)

1. a trachea foreign body forceps, is characterized in that: include caliper, the connection tube of pneumatic control handle and the gentle moving joystick of connection caliper; Described caliper is by having elastic rubber or integrally moulded, and described caliper is is structurally connected and composed by the jaw joint face of the support ring of the pipe joint b of tubular, tubular, spheric and three jaws successively one; The external diameter of described support ring is greater than the external diameter of pipe joint b, and described connection tube is connected with the outer wall interference fit of pipe joint b; Described jaw joint face is outwardly, and three jaws are evenly connected on the outer surface of jaw joint face and three jaws are on a circumference, and the inner surface of described jaw forms clip tooth; In described pipe joint b and support ring, be jointly embedded with the embedded pipe of a hard, in described jaw, be embedded with the reinforcing panel of hard; The inner surface middle part of described jaw joint face forms an annular rib, and annular rib equates with three residing circle diameters of jaw, and the diameter of described annular rib is the 1/2-2/3 of support ring internal diameter; The piston that described pneumatic control handle includes a piston cylinder and coordinates with piston cylinder, is connected with end and extend out to the piston rod outside piston cylinder on piston, piston cylinder front end is connected with a pipe joint a who is connected with described connection tube; Piston cylinder lateral wall is fixedly connected with a fixed handle, and piston rod end is hinged with a flexible handle, and flexible handle middle part is hinged on fixed handle by a jointed shaft b; The end of described piston rod forms the hinge eyes of a bar hole shape, is fixedly connected with a jointed shaft a on flexible handle, and jointed shaft a is limited in described hinge eyes; Described piston diameter is 3-5 times of piston body diameter; Described flexible handle driven plunger produces negative pressure to piston cylinder rear motion, and the jaw joint face of caliper is recessed to support ring under suction function, thereby drives three jaws to draw close and be contraction state to jaw joint face center.
2. a trachea foreign body forceps caliper, it is characterized in that: described caliper is by having elastic rubber or integrally moulded, described caliper is is structurally connected and composed by the jaw joint face of the support ring of the pipe joint b of tubular, tubular, spheric and three jaws successively one; The external diameter of described support ring is greater than the external diameter of pipe joint b, and described jaw joint face is outwardly, and three jaws are evenly connected on the outer surface of jaw joint face and three jaws are on a circumference, and the inner surface of described jaw forms clip tooth; In described pipe joint b and support ring, be jointly embedded with the embedded pipe of a hard, in described jaw, be embedded with the reinforcing panel of hard; The inner surface middle part of described jaw joint face forms an annular rib, and annular rib equates with three residing circle diameters of jaw, and the diameter of described annular rib is the 1/2-2/3 of support ring internal diameter; The jaw joint face of caliper is recessed to support ring under the suction function of pipe joint b mono-side, thereby drives three jaws to draw close and be contraction state to jaw joint face center.
3. a trachea foreign body forceps, is characterized in that: include caliper, the connection tube of pneumatic control handle and the gentle moving joystick of connection caliper; Described caliper is by having elastic rubber or integrally moulded, and described caliper is is structurally connected and composed by the jaw joint face of the support ring of the pipe joint b of tubular, tubular, spheric and three jaws successively one; The external diameter of described support ring is greater than the external diameter of pipe joint b, and described connection tube is connected with the outer wall interference fit of pipe joint b, and described connection tube outer surface is concordant with support ring outer surface; Described jaw joint face is outwardly, and three jaws are evenly connected on the outer surface of jaw joint face and three jaws are on a circumference, and the inner surface of described jaw forms clip tooth; In described pipe joint b and support ring, be jointly embedded with the embedded pipe of a hard, in described jaw, be embedded with the reinforcing panel of hard; Described pipe joint b inwall slidably connects a piston body, between piston body and the center of jaw joint face, is connected with a connecting rod, and the diameter of connecting rod is the 1/10-1/5 of support ring internal diameter; On described jaw joint face, evenly offer through hole, through hole is circumference array and distributes centered by connecting rod; The piston that described pneumatic control handle includes a piston cylinder and coordinates with piston cylinder, is connected with end and extend out to the piston rod outside piston cylinder on piston, piston cylinder front end is connected with a pipe joint a who is connected with described connection tube; Piston cylinder lateral wall is fixedly connected with a fixed handle, and piston rod end is hinged with a flexible handle, and flexible handle middle part is hinged on fixed handle by a jointed shaft b; The end of described piston rod forms the hinge eyes of a bar hole shape, is fixedly connected with a jointed shaft a on flexible handle, and jointed shaft a is limited in described hinge eyes; Described piston diameter is 3-5 times of piston body diameter; Described flexible handle driven plunger produces negative pressure to piston cylinder rear motion, the piston body of caliper moves to pipe joint b end under suction function, and drive jaw joint face to be recessed to support ring by connecting rod, thereby drive three jaws to draw close and be contraction state to jaw joint face center.
4. a trachea foreign body forceps caliper, it is characterized in that: described caliper is by having elastic rubber or integrally moulded, described caliper is is structurally connected and composed by the jaw joint face of the support ring of the pipe joint b of tubular, tubular, spheric and three jaws successively one; The external diameter of described support ring is greater than the external diameter of pipe joint b, and described connection tube outer surface is concordant with support ring outer surface; Described jaw joint face is outwardly, and three jaws are evenly connected on the outer surface of jaw joint face and three jaws are on a circumference, and the inner surface of described jaw forms clip tooth; In described pipe joint b and support ring, be jointly embedded with the embedded pipe of a hard, in described jaw, be embedded with the reinforcing panel of hard; Described pipe joint b inwall slidably connects a piston body, between piston body and the center of jaw joint face, is connected with a connecting rod, and the diameter of connecting rod is the 1/10-1/5 of support ring internal diameter; On described jaw joint face, evenly offer through hole, through hole is circumference array and distributes centered by connecting rod; The piston body of caliper moves to pipe joint b end under suction function, and drives jaw joint face to be recessed to support ring by connecting rod, thereby drives three jaws to draw close and be contraction state to jaw joint face center.
CN201410379921.3A 2014-08-04 2014-08-04 A kind of trachea foreign body forceps and caliper Expired - Fee Related CN104107083B (en)

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CN104473682A (en) * 2014-12-14 2015-04-01 李峰 Medical foreign body net clamp
CN104473683A (en) * 2014-12-14 2015-04-01 李峰 Medical foreign body net clamp structure
CN104490458A (en) * 2014-12-14 2015-04-08 李峰 Foreign body net tongs structure for use in surgical operation
CN104473681B (en) * 2014-12-14 2016-08-17 彭凡岭 A kind of surgical operation foreign body net clamps
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CN111993451A (en) * 2020-08-25 2020-11-27 浙江清华柔性电子技术研究院 Clamping assembly and clamping device
CN111993451B (en) * 2020-08-25 2022-05-24 浙江清华柔性电子技术研究院 Clamping assembly and clamping device

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CN105559863A (en) 2016-05-11
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CN105434012B (en) 2017-07-18
CN105434012A (en) 2016-03-30
CN104107083B (en) 2016-05-18
CN105559863B (en) 2017-08-11

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