CN108158638A - A kind of foreign matter net wrench structure - Google Patents

Abstract

The invention discloses a kind of medical foreign matter net wrench structures, include pneumatic control handle, caliper and the connecting tube for connecting the gentle dynamic joystick of caliper；The caliper by elliposoidal utricule and be integrally attached to the pipe fitting b of tubular of utricule long axis direction one end and form, and one end that pipe fitting b is connect with utricule forms partition board portion；The utricule is hollow structure, and molding is there are one round or ellipse clamping opening on the wall surface of utricule short-axis direction one end, and there are one telescoping tubes for clamping opening inner circumferential molding；Each support tube is connected close to one end of pipe fitting b with partition board portion, and the position that each support tube is corresponded on partition board forms the through-hole of connection support tube and pipe fitting b；The caliper is compact-sized ingenious, can be realized and is processed and formed at one time by 3D printing, and caliper outer wall is smooth and spherical in ellipse, and the stimulation and the small caliper size of damage generated to in-vivo tissue pipeline can process different size to adapt to different positions.

Description

A kind of foreign matter net wrench structure

Technical field

The invention belongs to medical instruments fields, and in particular to a kind of foreign matter wrench structure for tracheae.

Background technology

Foreign matter can be interfered breathing after accidentally sucking respiratory tract, can cause asphyxia even dead when serious, after aspirated foreign body It must take out in time.Usual foreign body is operated using airway wall cooperation trachea foreign body forceps, the foreign body forceps of the prior art All it is metal material, is repeatedly used after cleaning and sterilizing, but the chela position of foreign body forceps is usually hinge with caliper main body Form connection is connect, there are dead angles for link position, it is difficult to thoroughly clean up, there are infection risk, using effects during reuse It is undesirable.

Invention content

Purpose to realize the present invention, is achieved using following technical scheme：A kind of medical foreign matter net wrench structure, including There are pneumatic control handle, caliper and the connecting tube for connecting the gentle dynamic joystick of caliper；The pneumatic control handle includes Piston there are one piston cylinder and with piston cylinder cooperation, is connected with the piston rod that end is extend out to outside piston cylinder on piston, institute The one end of the piston rod stated far from piston forms threaded joints, and there are one adjust spiral shell for connection on the threaded joints of piston rod Mother, piston rod rear end are connected with a throw-out collar；There are one be connected with the connecting tube for piston cylinder front end integrally connected Pipe fitting a, piston cylinder close to rear end outer wall integrally connected there are two symmetrically arranged draw ring, the caliper is by elasticity Rubber material is integrally formed, the caliper by elliposoidal utricule and be integrally attached to the tubular of utricule long axis direction one end Pipe fitting b form, and pipe fitting b connect with utricule one end molding there are one by pipe fitting b and utricule separation partition board portion； The pipe fitting b is connected with the connecting tube；The utricule is hollow structure, and the long axis of elliptical shape ball residing for utricule is short 1.5-2 times of shaft length；There are one round or ellipse clamping opening, the folders for molding on the wall surface of utricule short-axis direction one end There are one telescoping tubes for the molding of mouth inner circumferential；The utricule inner wall uniformly forms multiple support tubes along long axis direction；Each support tube One end far from pipe fitting b is connected, and each support tube is connected close to one end of pipe fitting b with partition board portion, corresponding each on partition board The position of a support tube forms the through-hole of connection support tube and pipe fitting b；The telescoping tube is connected at least one support tube It is logical, and the flexible tube thickness is less than the thickness of support tube；The inner wall of the telescoping tube uniformly forms spiral rib, and The screw pitch of spiral rib is the 1/10-1/5 of flexible bore；Piston rod pushes piston to move compression to piston cylinder front end and lives Air in plug tube, compressed air are entered by connecting tube in support tube and telescoping tube, and support tube is acted on by air pressure and supportted Firmly utricule is allowed in unfolded state, and telescoping tube by air pressure effect elongation so as to magnify clamping opening, reply initial by piston rod State rear supporting tube, telescoping tube lose support, and clamping opening is restored to initial size.

Compared with prior art, the beneficial effects of the invention are as follows：The caliper is compact-sized ingenious, passes through 3D printing It can be achieved to be processed and formed at one time, caliper outer wall is smooth and spherical in ellipse, and the stimulation and damage for generate in-vivo tissue pipeline are small； The utricule inner wall of caliper is allowed to be maintained at unfolded state by support tube inflation, and telescoping tube is by air pressure effect elongation so as to make Clamping opening is magnified, ingenious using telescoping tube and the thickness difference of support tube, and two kinds of actions are generated respectively both so as to make under same air pressure, After clamping opening opens alignment foreign matter and foreign matter is made to be in the range of utricule, piston rod replys original state rear supporting tube, stretches Guan Jun loses support, and clamping opening is restored to initial size, and foreign matter is completely wrapped within utricule, is pulling out caliper process In, foreign matter is without departing from safe and convenient to use.Adjusting nut on the pneumatic control handle can adjust piston rod advance Amplitude can adjust adjusting nut in advance to appropriate location, in this way according to the size of foreign matter and the size of foreign matter locational space It can be disposably by piston rod by earth when gripping foreign matter, you can make clamping opening size appropriate, conducive to operating time is shortened, mitigate patient Pain.Foreign matter net pincers are suitable for the foreign body of internal each position, and the rib of the telescoping tube spiral inner wall shape to stretch Pipe axial elongation, and in telescoping tube radially since the screw pitch of rib is smaller, it is small that telescoping tube radially heaves amplitude, can almost neglect Slightly, caliper volume will not be caused excessively to become larger after can ensureing telescopic tube in this way.Caliper size can process different size To adapt to different positions.

Description of the drawings

Fig. 1 is the structure diagram of the present invention.

Fig. 2 is the structure diagram of pneumatic control handle.

Specific embodiment

According to Fig. 1 to Fig. 2, a kind of medical foreign matter net wrench structure described in the present embodiment includes pneumatic control hand Handle 1, caliper 3 and the connecting tube 2 for connecting the gentle dynamic joystick of caliper；The pneumatic control handle is lived there are one including Plug tube 11 and the piston with piston cylinder cooperation, are connected with the piston rod that end is extend out to outside piston cylinder, the work on piston The one end of stopper rod far from piston forms threaded joints 132, and there are one adjusting nuts for connection on the threaded joints of piston rod 12, piston rod rear end is connected with a throw-out collar 131；There are one coordinate to connect with the connecting tube for piston cylinder front end integrally connected The pipe fitting a111 connect, there are two symmetrically arranged draw ring 112, the pincers for outer wall integrally connected of the piston cylinder close to rear end Body is integrally formed by elastic rubber material, the caliper by elliposoidal utricule 35 and be integrally attached to utricule long axis direction one The pipe fitting b31 of the tubular at end is formed, and one end for connect with utricule of pipe fitting b be molded there are one by pipe fitting b and utricule The partition board portion 311 of separation；The pipe fitting b is connected with the connecting tube；The utricule is hollow structure, residing for utricule The long axis of elliptical shape ball is 1.5 times of minor axis length；Clamping opening oval there are one moldings on the wall surface of utricule short-axis direction one end, There are one telescoping tubes 332 for the clamping opening inner circumferential molding；The utricule inner wall uniformly forms multiple support tubes along long axis direction 331；The one end of each support tube far from pipe fitting b is connected, and each support tube is close to one end of pipe fitting b and partition board portion phase Even, the position that each support tube is corresponded on partition board forms the through-hole 312 of connection support tube and pipe fitting b；The telescoping tube with At least one support tube is connected, and the flexible tube thickness is less than the thickness of support tube；The inner wall of the telescoping tube uniformly into Type has spiral rib, and 1/10 that the screw pitch of spiral rib is flexible bore；Piston rod pushes piston to piston Air in cylinder front end movement compression piston cylinder, compressed air are entered by connecting tube in support tube and telescoping tube, support tube Utricule is propped up by air pressure effect to be allowed in unfolded state, telescoping tube is acted on elongation so as to make clamping opening by air pressure Greatly, piston rod replys original state rear supporting tube, telescoping tube loses support, and clamping opening is restored to initial size.

The caliper is processed and formed at one time by 3D printing.The inner wall of the utricule also forms and each support tube Secondary support tube (not shown) that is vertical and being connected with each support tube.Secondary support tube enable utricule more stably by It props up, caliper is made to can adapt to the various complex environments of internal different parts.

In use, fibrescope is stretched into patient's body affected part foreign matter neighbouring position together with caliper and connecting tube, pass through Fiber endoscopic sem observation makes clamping opening be directed at foreign matter；Pressing piston rod makes pneumatic control handle generate air pressure, and the support tube of caliper exists It is hardened under gas pressure, so as to play the role of supporting utricule, the telescoping tube extends under gas pressure, so as to make clamping opening Greatly, after finely tuning the position of caliper and making clamping opening alignment foreign matter and foreign matter is made be on the inside of clamping opening, as long as release piston rod, telescoping tube are gone Gas pressure restores original shape, and foreign matter is just wrapped among utricule, and then caliper is pulled out together with connecting tube and can be taken off Foreign matter.

Claims (2)

1. a kind of medical foreign matter net wrench structure according to claim 1, it is characterised in that：The caliper passes through 3D printing It is processed and formed at one time.

2. a kind of medical foreign matter net wrench structure according to claim 1 or 2, it is characterised in that：The inner wall of the utricule is also Form secondary support tube that is vertical with each support tube and being connected with each support tube.