CN112206085B - Rapid shearing and assembling system for developing points of intracranial biodegradable stent - Google Patents

Rapid shearing and assembling system for developing points of intracranial biodegradable stent Download PDF

Info

Publication number
CN112206085B
CN112206085B CN202011113867.XA CN202011113867A CN112206085B CN 112206085 B CN112206085 B CN 112206085B CN 202011113867 A CN202011113867 A CN 202011113867A CN 112206085 B CN112206085 B CN 112206085B
Authority
CN
China
Prior art keywords
shearing
point
placing
developing
support
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202011113867.XA
Other languages
Chinese (zh)
Other versions
CN112206085A (en
Inventor
陈鹤
赵古田
张伶
王彬
胡雪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing Haoyandingye Technology Co ltd
Original Assignee
Nanjing Haoyandingye Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nanjing Haoyandingye Technology Co ltd filed Critical Nanjing Haoyandingye Technology Co ltd
Priority to CN202011113867.XA priority Critical patent/CN112206085B/en
Publication of CN112206085A publication Critical patent/CN112206085A/en
Application granted granted Critical
Publication of CN112206085B publication Critical patent/CN112206085B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D79/00—Methods, machines, or devices not covered elsewhere, for working metal by removal of material

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Transplantation (AREA)
  • Vascular Medicine (AREA)
  • Optics & Photonics (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Abstract

The invention discloses a rapid shearing and assembling system for developing points of an intracranial biodegradable stent, which consists of a stent base, a support rod, a stent mounting and placing mechanism and a developing point shearing and mounting slide block device. The shearing and mounting process of the developing points comprises the following steps: the method comprises the steps of placing a support on a guide rod, installing the guide rod on a support shaft, observing and adjusting through the guide rod to enable a support hole to be vertically upward, moving a developing point shearing and installing mechanism to enable the developing point shearing and installing mechanism to be located above an assembling hole, transversely inserting a precious metal material into a corresponding hole groove in a movable sleeve, pressing a pressing plug rod to press the sheared material into the support hole after the precious metal material is sheared through a pressing shearing pipe, moving out the adjusting guide rod, and observing the installing effect. The invention has the characteristics of convenient assembly, simple and quick operation, provides the bracket developing point assembling method which has strong practicability, simple and convenient operation and controllability, and has the characteristics of high efficiency, cost saving and strong controllability.

Description

Rapid shearing and assembling system for developing points of intracranial biodegradable stent
Technical Field
The invention belongs to the technical field of biomedical equipment assembly, and particularly relates to a rapid shearing and assembling system for developing points of an intracranial biodegradable stent.
Background
In recent years, cardiovascular and cerebrovascular diseases become the healthy first killer of human beings, 1700 thousands of people die of heart diseases every year all over the world, and according to the data of the Chinese health statistics briefs, the number of the Chinese cardiovascular and cerebrovascular disease patients exceeds 2.7 hundred million at present, and the number of the death caused by the cardiovascular and cerebrovascular diseases is close to 40 percent of the total number of the death people all over the country. At present, the aging population and the increasing living standard of China enable China to enter the window period of the outbreak of cardiovascular and cerebrovascular diseases, and the stent intervention operation is carried out with the increase in demand.
In order to meet various clinical requirements, the interventional stent has good biocompatibility, memory, mechanical properties and the like. Among them, the development performance of the vascular stent under X-ray is an important performance characteristic of the vascular stent. However, unlike the conventional metal stent, the biodegradable stent base material is a high molecular polymer, which is not obvious under X-ray, and this brings difficulty to the operation of the surgeon because the surgeon cannot locate the position of the stent in the blood vessel during the actual operation. Therefore, in order to facilitate the doctor to identify the position of the stent under X-ray and accurately position the stent in the operation process, the method for fixing the developing mark on the specific position of the degradable vascular stent becomes a main solution for developing the degradable vascular stent.
At present, in the preparation process of the biodegradable stent, the operation of the stent development point assembly work is generally to place a certain number of noble metal development points in a holding vessel, place the stent on a stent shaft, judge the position of a hole on the degradable stent by naked eyes and adjust the position, suck the noble metal by a vacuum suction pen, place the noble metal at the assembly hole, and finally press the noble metal into the hole completely. However, the existing manual operation efficiency is low, the conditions of the support are limited, the size of the developing points is too small, the precious metal is seriously lost in the processes of absorption and installation, the cost is increased, and in the batch production, the stable and successful effect is difficult to guarantee, so that the rapid shearing and installing device system capable of degrading the developing points of the support is researched and developed, and the rapid and stable developing points of the installing support have important significance for reducing the manufacturing cost of the support, stably producing the support in batch and the like.
Disclosure of Invention
In order to solve the problems, the invention discloses a rapid shearing and assembling system for developing points of an intracranial biodegradable stent, which improves the production efficiency and reduces the cost.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a rapid shearing and assembling system for developing points of an intracranial biodegradable stent comprises a stent base, a support rod, a stent mounting and placing mechanism and a developing point shearing and mounting slide block device;
wherein the bracket base is horizontally arranged, the support rod is vertically arranged on the bracket base, the support rod is penetrated with a cylindrical hole,
the bracket mounting and placing mechanism comprises a bracket placing and sliding block moving device shaft, a developing point shearing and mounting sliding block placing sleeve, a matching bearing and a bracket placing and adjusting guide rod; the shaft of the bracket placing and sliding block moving device horizontally penetrates through the supporting rod, a transverse key is arranged outside the shaft of the bracket placing and sliding block moving device, the developing point shearing and mounting sliding block placing sleeve is sleeved outside the shaft of the bracket placing and sliding block moving device (at the far end, the developing point shearing and mounting sliding block placing sleeve extends out of the shaft of the bracket placing and sliding block moving device, namely, the far end of the shaft is retracted into the sleeve), the matching bearing is arranged at the end part of the far end of the shaft of the bracket placing and sliding block moving device, one end of the bracket placing and adjusting guide rod is arranged in the matching bearing, the other end of the bracket placing and adjusting guide rod is a free end, and the biodegradable bracket can be sleeved at the free end; the developing point shearing and mounting slide block placing sleeve is provided with a long hole, and a sheet to be sheared can be transversely inserted;
developing point is cuted and installation slider device includes that support, developing point are cuted the pipe, the gag lever post is pressed to the developing point, the support setting is on developing point is cuted and the sleeve is placed to the installation slider, is equipped with the round hole on the support, the round hole sets up in rectangular hole top, developing point is cuted the pipe setting in the round hole, and developing point is cuted a tub lower extreme and is for cutting the sword, is furnished with spring mechanism one on developing point is cuted the pipe, and developing point is cuted outside of tubes and is equipped with and presses the handle, developing point is pressed the gag lever post and is stretched into developing point and is cuted intraductally, developing point is provided with spring mechanism two on pressing the gag lever post.
As an improvement of the invention, a cylindrical pin is arranged at the joint of the support rod and the shaft of the bracket placing and sliding block moving device, so that the support rod and the sliding block moving device are convenient to disassemble.
As an improvement of the invention, the shaft of the bracket placing and sliding block moving device is provided with scales, so that the developing point shearing and the distance for installing the sliding block placing sleeve can be accurately moved.
The invention relates to a using method of a rapid shearing and assembling system of developing points of an intracranial biodegradable bracket, which comprises the following steps:
sleeving a biodegradable bracket at the free end of a bracket placing and adjusting guide rod, and circumferentially rotating the bracket placing and adjusting guide rod to enable an assembling hole to be vertically upward;
observing and moving the developing point shearing and mounting slide block placing sleeve, so that the shearing position of the developing point shearing and mounting slide block device is just above the assembling hole;
thirdly, transversely inserting the noble metal sheet into a strip hole of the developing point shearing and mounting slide block placing sleeve;
fourthly, after observing that the positions of the assembly hole and the shearing installation mechanism are proper, firstly pressing down the developing point shearing pipe to shear the noble metal sheet, then pressing down the developing point to press the plug rod, and pressing the sheared noble metal into the assembly hole;
step five, after the developing point shearing pipe and the developing point pressing plug rod return to the original point under the action of the spring, moving the developing point shearing and mounting slide block placing sleeve to enable the developing point shearing and mounting slide block device to move to the next shearing position, and repeating the step four until the requirement is met;
and step six, moving the biodegradable bracket out of the bracket placing and adjusting guide rod, and observing and judging whether the installation of the developing point is qualified.
The invention has the beneficial effects that:
A) the mounting device can cut and stamp the noble metal material at the same time, greatly reduces the waste of the noble metal material during mounting and absorption, and reduces the mounting cost;
B) the mounting device has the characteristics of simple and convenient operation and quick pressing, and greatly improves the production efficiency;
C) the support shaft, the sleeve and the support placing and adjusting guide rod in the mounting device can be detached, and a support observing mechanism can be assembled when the mounting is not needed, so that the support appearance and the like can be conveniently observed in other processes.
Drawings
FIG. 1 is a schematic diagram of a rapid shearing and mounting device for degradable intracranial stent visualization sites;
FIG. 2 is an enlarged view A of FIG. 1;
FIG. 3 shows a side view of the development point shear and mount mechanism movement;
FIG. 4 is a schematic diagram of circumferential fine adjustment of the rack mount and placement mechanism;
fig. 5 is a schematic diagram of the bracket mounting and placing mechanism being disassembled.
List of reference numerals:
1, pressing a plug rod by a developing point; 2 developing a point shearing tube; 3, a second spring mechanism; 4, a first spring mechanism; 5, supporting the rod; 6, a cylindrical pin; 7, a bracket base; 8, placing a bracket and moving a sliding block moving device shaft; 9, cutting a developing point and installing a slide block placing sleeve; 10 mating a bearing; 11, placing and adjusting a guide rod by a bracket; 12, a support; 13 long holes; 14 circular holes; 15 cutting edges; 16 a transverse key; 17 press the handle.
Detailed Description
The present invention will be further illustrated with reference to the accompanying drawings and specific embodiments, which are to be understood as merely illustrative of the invention and not as limiting the scope of the invention. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
As shown in the figure, the rapid shearing and assembling system for the developing point of the intracranial biodegradable bracket comprises a bracket base 7, a support rod 5, a bracket mounting and placing mechanism and a developing point shearing and mounting slide block device;
the support base 7 is connected with the support rod 5, a cylindrical hole (provided with a cylindrical pin 6) is arranged in the support rod in a penetrating mode, and the support placing and sliding block moving device shaft 8 (detachable) is installed on the support rod according to different requirements and is fixed through the cylindrical pin; the developing point shearing and mounting slide block placing sleeve 9 is detachably mounted on the outer side of the support placing and slide block moving device shaft 8 through a transverse key 16, and the moving position is fixed through the transverse key, so that the developing point shearing and mounting slide block placing sleeve 9 can only horizontally move on the support shaft, and the mounting error caused by circumferential sliding can be avoided; the support placing and adjusting guide rod 11 is detachably mounted at a matching bearing at the end part of the support shaft and can rotate circumferentially, and the biodegradable support is sleeved on the support placing and adjusting guide rod 11 during use and is observed in a rotating mode.
In the developing point shearing and mounting sliding block device, a developing point shearing pipe 2 is sleeved outside a developing point pressing plug rod 1, the shearing part is of a hollow circular ring structure, the pressing plug rod 1 is of a cylindrical structure, the shearing pipe 2, the pressing plug rod 1, a spring structure II 3 and a spring structure I4 are connected and fixed on a developing point shearing and mounting sliding block placing sleeve 9, and a corresponding strip hole 13 structure is arranged on the sleeve 9 and used for placing a to-be-sheared noble metal material.
Before installing the noble metal material, the biodegradable bracket is firstly placed on the bracket placing and adjusting guide rod 11, the guide rod 11 is installed on the bracket placing and sliding block moving device shaft 8 on which the developing point shearing and sliding block placing sleeve 9 is installed, the height of the guide rod is adjusted to a proper height (a plurality of cylindrical holes with different heights can be selected on the support rod 5), and the guide rod is installed on the corresponding cylindrical hole of the support rod 5 and is fixed by the cylindrical pin 6.
The guide rod 11 is rotated in the circumferential direction, so that the support is placed at a proper position, the assembly hole is vertically upward, the developing point is moved, and the sliding block device is cut and installed, and the position of the cutting pipe is located right above the assembly hole. Thereafter, the noble metal material is laterally inserted into the position of the elongated hole 13 on the developing-site cutting and mounting-slider placing sleeve 9.
Firstly, a pressing handle 17 is pressed down to drive a developing point shearing pipe 2 to shear a noble metal material, the effect of the shearing is to shear a proper amount of cylindrical noble metal developing points from a noble metal sheet to be processed, and the shearing process is set to penetrate through a noble metal plate at most but not reach the upper surface of a support; after shearing, the developing point is pressed down to press the plug rod 1, and the sheared noble metal material is pressed into the hole of the bracket, wherein the pressing process is set to be that the maximum protrusion amount of the noble metal material is 20 microns from the upper surface of the developing point to the developing point and enters the hole. One precious metal material can be cut for multiple times (the movable sleeve 9 can be cut at different positions), and after the precious metal material is cut, the bracket is detached, the guide rod 11 is placed and adjusted, and the installation condition is observed.
The spring device on the developing point shearing and mounting slider device ensures that the movement position of the shearing pipe 2 exceeds the thickness of the noble metal sheet and stops when reaching the surface of the support to the maximum extent, ensures that the movement position of the pressing plug rod 1 reaches a certain distance from the surface of the sheared noble metal material to the support hole, ensures that the device stops after successful mounting, ensures the shearing and pressing effect and protects the support from being damaged due to overlarge force.
The support shaft 8, the sleeve 9 and the support placing and adjusting guide rod 11 in the mounting device can be detached, and a support observing mechanism can be assembled when the mounting is not needed, so that the microscopic observation of the support appearance and the like in other processes is facilitated.
The device can rapidly install the developing point marks under the condition of not damaging the bracket as much as possible, and has the outstanding advantages of convenient and rapid operation, easy processing and manufacturing, installation cost reduction and the like.
The technical means disclosed in the invention scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features.

Claims (4)

1. The utility model provides a quick shearing and assembly system of intracranial biodegradable support development point which characterized in that: the device comprises a bracket base (7), a support rod (5), a bracket mounting and placing mechanism and a developing point shearing and mounting sliding block device;
wherein the bracket base (7) is horizontally placed, the support rod (5) is vertically arranged on the bracket base (7), the support rod (5) is penetrated with a cylindrical hole,
the bracket mounting and placing mechanism comprises a bracket placing and sliding block moving device shaft (8), a developing point shearing and mounting sliding block placing sleeve (9), a matching bearing (10) and a bracket placing and adjusting guide rod (11); the device comprises a support placing and sliding block moving device shaft (8), a support rod (5), a transverse key (16), a developing point shearing and mounting sliding block placing sleeve (9), a matching bearing (10), a support placing and adjusting guide rod (11), a supporting point shearing and mounting sleeve (8), a sliding block placing sleeve (9), a supporting point shearing and mounting sleeve (8), a transverse key (16), a transverse key and a transverse key (16), wherein the supporting point shearing and mounting sleeve (9) is sleeved on the outer side of the support placing and sliding block moving device shaft (8), one end of the supporting point shearing and adjusting guide rod (11) is arranged in the matching bearing (10), and the other end of the supporting point shearing and mounting sleeve is a free end; the developing point shearing and mounting slide block placing sleeve (9) is provided with a strip hole (13);
development point is cuted and installation slider device includes that support (12), development point shear pipe (2), development point press cock stem (1), support (12) set up on development point is cuted and installation slider places sleeve (9), is equipped with round hole (14) on support (12), round hole (14) set up in rectangular hole (13) top, development point shear pipe (2) set up in round hole (14), and development point shear pipe (2) lower extreme is cutting edge (15), is furnished with spring mechanism (4) on development point shear pipe (2), and development point shear pipe (2) outside is equipped with and presses handle (17), in development point presses cock stem (1) to stretch into development point shear pipe (2), development point presses to be furnished with spring mechanism two (3) on cock stem (1).
2. The system for rapid cutting and assembling of visualization sites of intracranial biodegradable stents as claimed in claim 1, wherein: and a cylindrical pin (6) is arranged at the joint of the support rod (5) and the support placing and sliding block moving device shaft (8).
3. The rapid cutting and assembling system for developing points of intracranial biodegradable stent as defined in claim 1, wherein: and scales are arranged on the support placing and sliding block moving device shaft (8).
4. The method for using the rapid shearing and assembling system for developing points of intracranial biodegradable stents as claimed in claim 1, wherein: comprises the following steps
Sleeving a biodegradable bracket at the free end of a bracket placing and adjusting guide rod (11), and circumferentially rotating the bracket placing and adjusting guide rod to enable an assembling hole to be vertically upward;
observing and moving the developing point shearing and mounting slide block placing sleeve (9) to enable the shearing position of the developing point shearing and mounting slide block device to be just above the assembling hole;
thirdly, transversely inserting the noble metal sheet into a long hole (13) for cutting a developing point and installing a slider placing sleeve;
fourthly, after observing that the positions of the assembly hole and the shearing installation mechanism are proper, firstly pressing down the developing point shearing pipe (2) to shear the noble metal sheet, then pressing down the developing point pressing plug rod (1) to press the sheared noble metal into the assembly hole;
step five, after the developing point shearing pipe (2) and the developing point pressing plug rod (1) return to the original point under the action of the spring, moving the developing point shearing and mounting slide block placing sleeve (9) to enable the developing point shearing and mounting slide block device to move to the next shearing position, and repeating the step four until the requirement is met;
and step six, moving the biodegradable bracket out of the bracket placing and adjusting guide rod (11), and observing and judging whether the installation of the developing point is qualified.
CN202011113867.XA 2020-10-18 2020-10-18 Rapid shearing and assembling system for developing points of intracranial biodegradable stent Active CN112206085B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011113867.XA CN112206085B (en) 2020-10-18 2020-10-18 Rapid shearing and assembling system for developing points of intracranial biodegradable stent

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011113867.XA CN112206085B (en) 2020-10-18 2020-10-18 Rapid shearing and assembling system for developing points of intracranial biodegradable stent

Publications (2)

Publication Number Publication Date
CN112206085A CN112206085A (en) 2021-01-12
CN112206085B true CN112206085B (en) 2022-06-03

Family

ID=74055687

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011113867.XA Active CN112206085B (en) 2020-10-18 2020-10-18 Rapid shearing and assembling system for developing points of intracranial biodegradable stent

Country Status (1)

Country Link
CN (1) CN112206085B (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB464862A (en) * 1935-09-23 1937-04-23 Thomas Finney Pearson Improvements in shearing-mechanism for use with devices for feeding molten glass to forming machines
US2346241A (en) * 1940-10-26 1944-04-11 Reece Button Hole Machine Co Work clamping mechanism
CN104958826A (en) * 2015-07-28 2015-10-07 上海百心安生物技术有限公司 Device for pressing developing point
CN108608186A (en) * 2018-06-15 2018-10-02 东南大学 A kind of automatic setup system towards Biodegradable scaffold development point
CN209050364U (en) * 2018-10-12 2019-07-02 江阴法尔胜佩尔新材料科技有限公司 The riveting press equipment of nickel titanium stents development point

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB464862A (en) * 1935-09-23 1937-04-23 Thomas Finney Pearson Improvements in shearing-mechanism for use with devices for feeding molten glass to forming machines
US2346241A (en) * 1940-10-26 1944-04-11 Reece Button Hole Machine Co Work clamping mechanism
CN104958826A (en) * 2015-07-28 2015-10-07 上海百心安生物技术有限公司 Device for pressing developing point
CN108608186A (en) * 2018-06-15 2018-10-02 东南大学 A kind of automatic setup system towards Biodegradable scaffold development point
CN209050364U (en) * 2018-10-12 2019-07-02 江阴法尔胜佩尔新材料科技有限公司 The riveting press equipment of nickel titanium stents development point

Also Published As

Publication number Publication date
CN112206085A (en) 2021-01-12

Similar Documents

Publication Publication Date Title
CN205359694U (en) Disconnected beak ware of numerical control
CN112206085B (en) Rapid shearing and assembling system for developing points of intracranial biodegradable stent
CN2619586Y (en) Tumor tissue puncturing biopsy apparatus
CN215391906U (en) Punching press side cut device is used in production of display backplate
CN216881320U (en) Medical part stamping die convenient for demolding
CN213658611U (en) Contact lens defect inspection equipment
CN221160658U (en) Hole cutting device for bent drainage tube
CN214394520U (en) Breast patch puncher
CN214772528U (en) Novel manual hole puncher of blood spot
CN211094356U (en) Surgical retractor
CN215584222U (en) Clinical sampling censorship device of nursing department of general surgery
CN220231531U (en) Tumor biopsy analyzer
CN219872651U (en) Simulation equipment for traumas
CN207746252U (en) A kind of quick Fabrication circular gasket mechanism
CN220093401U (en) Punching machine is used in polytetrafluoroethylene gasket production
CN113288579A (en) Novel artificial lacrimal duct
CN216859992U (en) Punching device is used in production of operation piece of cloth
CN219200877U (en) Food sampling device
CN208643922U (en) A kind of stamping parts pop-up auxiliary device
CN219397374U (en) Sample sampling device
CN219899963U (en) One-time bending positioning tool for heart-shaped ring
CN210387171U (en) Punching and expanding die for outer electrode tube of surgical electrode
CN216372564U (en) Medicine subsides cutting former
CN216165083U (en) Automatic stick inserting machine for high-pile steamed buns
CN215425833U (en) Shank operation leg positioning device for operating room

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant