CN111529773A - Craniocerebral drainage catheter - Google Patents

Craniocerebral drainage catheter Download PDF

Info

Publication number
CN111529773A
CN111529773A CN202010409673.8A CN202010409673A CN111529773A CN 111529773 A CN111529773 A CN 111529773A CN 202010409673 A CN202010409673 A CN 202010409673A CN 111529773 A CN111529773 A CN 111529773A
Authority
CN
China
Prior art keywords
lifting
connecting frame
spring
main body
tubular main
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.)
Granted
Application number
CN202010409673.8A
Other languages
Chinese (zh)
Other versions
CN111529773B (en
Inventor
杜锐
杜兰平
李启鹏
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.)
Weihai Strongmedical Sci Tech Co ltd
Original Assignee
Weihai Strongmedical Sci Tech 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 Weihai Strongmedical Sci Tech Co ltd filed Critical Weihai Strongmedical Sci Tech Co ltd
Priority to CN202010409673.8A priority Critical patent/CN111529773B/en
Publication of CN111529773A publication Critical patent/CN111529773A/en
Application granted granted Critical
Publication of CN111529773B publication Critical patent/CN111529773B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • A61M1/0023—
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/83—Tube strippers, i.e. for clearing the contents of the tubes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/84—Drainage tubes; Aspiration tips
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M2025/0019—Cleaning catheters or the like, e.g. for reuse of the device, for avoiding replacement
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/3331—Pressure; Flow
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2210/00—Anatomical parts of the body
    • A61M2210/06—Head
    • A61M2210/0693—Brain, cerebrum

Landscapes

  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Vascular Medicine (AREA)
  • Surgery (AREA)
  • Biophysics (AREA)
  • Pulmonology (AREA)
  • External Artificial Organs (AREA)

Abstract

A craniocerebral drainage catheter relates to a medical drainage catheter, wherein a rear connecting frame and a spring supporting frame are arranged in the front end part of a tubular main body, a guide slide bar is arranged on the rear connecting frame, a dredging scraper is arranged on the guide slide bar, a front connecting frame is fixed on the guide slide bar, a front end cap is arranged on the front connecting frame, a pressure sensor is arranged on the dredging scraper, a connector base is arranged on the rear part of the tubular main body, a baffle plate is arranged at the rear end of the connector base, a connecting pull rod is arranged in the middle of the baffle plate, a limiting baffle ring is arranged on the connecting pull rod, a reset pressure spring is arranged between the limiting baffle ring and the baffle plate, a lifting column and a lifting nut are arranged on the connecting pull rod; the front side of the front connecting frame is provided with a resetting installation cover, and a resetting tension spring is arranged between the dredging scraper and the resetting installation cover. The invention has the advantages of large drainage area, high drainage efficiency, simple and convenient operation, good drainage effect and the like, and can clear away the blockage when in blockage.

Description

Craniocerebral drainage catheter
Technical Field
The invention relates to the field of medical drainage catheters, in particular to a craniocerebral drainage catheter which has large drainage area, high drainage efficiency, simple and convenient operation and good drainage effect, and can clear away blockages when in blockage.
Background
Drainage tubes are known as common medical instruments used in hospital surgery to guide pus, blood and fluid accumulated in human body tissues or body cavities to the outside of the body. The craniocerebral drainage catheter is a common medical instrument for removing the craniocerebral hematocele, the existing craniocerebral drainage catheter is made of materials such as silicon rubber or polyurethane, the front end of the existing craniocerebral drainage catheter is closed, and 2-3 drainage holes are uniformly distributed on the shaft on the side wall of the front end part of the catheter; when in use, the front end part of the catheter is inserted into the drainage position in the ventricle, the rear end of the catheter can be connected with other external apparatuses such as a drainage connecting pipe and the like outside the body, and drainage is carried out outside the body under the action of internal pressure, gravity or negative pressure suction isopiestic pressure. The existing craniocerebral drainage catheter is limited in size and number of the drainage holes in order to ensure the support strength of the front end part of the catheter, the hematocele hydrops needing to be drained can not be quickly and timely drained out of the body, the drainage efficiency is low, the phenomenon of blockage and unsmooth drainage can be easily caused at the drainage holes due to coagulation in the hematocele hydrops in a brain chamber in the drainage process, once the craniocerebral drainage catheter needs to be replaced when the condition occurs, the possibility of infection of a patient is greatly increased by repeatedly replacing the craniocerebral drainage catheter, the drainage effect is poor, and a great deal of inconvenience is brought to medical care work.
Disclosure of Invention
The invention aims to solve the defects of the prior art and provides the craniocerebral drainage catheter which has the advantages of large drainage area, high drainage efficiency, capability of clearing away blockages during blockage, simple and convenient operation and good drainage effect.
The technical scheme adopted by the invention for solving the defects of the prior art is as follows:
a craniocerebral drainage catheter is provided with a tubular main body and is characterized in that a rear connecting frame is arranged in the front end part of the tubular main body, a spring supporting frame which can axially stretch and retract is arranged at the front end of the tubular main body, the rear end part of the spring supporting frame is fixedly connected with the front end of the tubular main body, at least three guide slide bars which can freely slide back and forth are arranged on the rear connecting frame at the inner side of the spring supporting frame, a dredging scraper which can freely slide in the axial direction is arranged on the guide slide bars in the spring supporting frame, a front connecting frame is fixedly arranged on the guide slide bars at the lower side of the dredging scraper, a front end cap is arranged on the front connecting frame, a pressure sensor is arranged in the middle of the dredging scraper, a sleeve-shaped joint seat which is communicated with the inside of the tubular main body is arranged on the outer side of the rear part of the tubular main, a reset pressure spring is arranged between the limiting retaining ring and the baffle, a lifting column is arranged on a connecting pull rod at the rear side of the baffle, a lifting external thread is arranged on the outer side of the lifting column, a lifting nut matched with the lifting external thread is arranged on the outer side of the lifting column, a lifting conducting wire which penetrates through the lifting column and the connecting pull rod and is fixedly connected with the lifting column and the connecting pull rod is arranged, the front end of the lifting conducting wire is connected with a pressure sensor, and a sensing equipment joint is arranged at the rear end of the lifting conducting wire at the rear side of the lifting column; the front side of the front connecting frame is provided with a resetting installation cover embedded into the front end cap, and a resetting tension spring is arranged between the dredging scraper and the resetting installation cover.
The spring support frame is a cylindrical spiral spring, and the outer diameter of the cylindrical spiral spring is not larger than that of the tubular main body. The rear end part of the cylindrical spiral spring extends into the side wall of the front end part of the tubular main body and is connected with the rear connecting frame, the front end cap is solid and hemispherical, the front end part of the cylindrical spiral spring is connected with the front connecting frame, and the structure is more stable. When the front end cap is prepared, liquid soft rubber is injected into a mold, the front connecting frame with the resetting installation cover is placed on the liquid soft rubber, the resetting installation cover is positioned in the liquid soft rubber, the outer side face of the resetting installation cover is in full contact with the liquid soft rubber, and the liquid soft rubber is placed for shaping for a certain time. On the basis of providing enough support intensity for the front end part of the catheter, the drainage area is greatly increased, and an axially telescopic structure is provided for the drainage part at the front part of the catheter.
The spring support frame is formed by at least three cylindrical spiral springs in an annular array, the front ends of the cylindrical spiral springs are fixedly connected with the front connecting frame, and the rear ends of the cylindrical spiral springs are fixedly connected with the rear connecting frame; the drainage area is large, the strength is high, and the bending is not easy.
A sliding friction plate is arranged between the front end of the lifting nut and the rear side face of the baffle plate, and the sliding friction plate is made of smooth wear-resistant materials. The lifting nut is more labor-saving in rotation, and the blockage can be conveniently dredged.
The lifting conducting wire comprises a lifting rope at the outer side and a conducting wire at the inner side, wherein the lifting rope is connected with the middle part of the dredging scraper through an outer shell of the pressure sensor, and the conducting wire is connected with a sensing part of the pressure sensor.
The rear end of the lifting column is provided with a holding handle. When in use, the lifting column is convenient for an operator to hold and fix the lifting column by hands.
When the drainage device is used, the rear end of the tubular main body is connected with the collection device, the joint of the sensing device is connected with the pressure monitoring device, the spring support frame at the front end of the tubular main body is placed at a drainage position in a ventricle, drainage liquid enters the tubular main body through the gap of the spring support frame, enters the collection device through the tubular main body, and real-time pressure data is transmitted to the pressure monitoring device through the pressure sensor and the lifting conduction wire. The gap area of the spring support frame is larger than that of the drainage hole in the prior art, the contact area with the wound surface is increased on the basis of ensuring enough strength, the wound surface damage is avoided, the drainage area is increased, and the drainage efficiency is high. When the spring wires of the spring support frame or the inside of the spring support frame is blocked by solid matters such as blood clots and the like and drainage is not smooth, one hand holds the holding handle or the lifting conducting wire to fix the lifting column, the other hand rotates the lifting nut which pushes the lifting column backwards, the lifting column and the connecting pull rod drive the dredging scraper to move backwards through the lifting conducting wire and the pressure sensor, the dredging scraper axially moves in the spring support frame, and the solid matters blocked between the spring wires of the spring support frame or the inside of the spring support frame are hung and pushed into the tubular main body; in the initial stage of backward movement of the dredging scraper, under the action of the reset tension spring, the front connecting frame, the front end cap and the guide slide bar move backward, the spring support frame is compressed, the pitch between the spring steel wires of the spring support frame is gradually reduced, the blocked solid matters are extruded and cut, the guide slide bar slides backward and can also push and press the solid matters entering the front end part of the tubular main body backward, the blockage removing effect is good, the operation is simple and convenient, and the drainage effect is good; in the initial stage of backward movement of the dredging scraper, the backward movement speed of the dredging scraper is greater than the backward movement speed of the front connecting frame; when the compression spring support frame is compressed to be incapable of being compressed continuously (the spring steel wires of the compression spring are attached axially), the dredging scraper plate continuously moves backwards in the spring support frame to further push and press the blockage into the tubular main body, and the blockage removing effect is good; the initial stage of the backward movement of the dredging scraper, the axial movement of the spring support frame, the front connecting frame, the front end cap and the guide slide bar is slow and soft, the later stage of the backward movement of the dredging scraper is that the spring steel wire of the spring support frame is axially attached to the dredging scraper, a closed space is formed inside the dredging scraper, and the secondary damage to the affected part is not easy to cause. The lifting column is pushed backwards for a certain distance or completely pushed, the lifting nut is rotated reversely, and the lifting column and the connecting pull rod move forwards for resetting under the action of the resetting pressure spring when the lifting nut is rotated reversely; under the elastic force of the spring support frame, the front connecting frame moves forwards to reset, and the dredging scraper moves forwards to reset under the action of the reset tension spring to finish the operation of clearing the blockage at one time. The operation of clearing the blockage is repeated for two to three times, and the blockage at the drainage head at the front end part of the tubular main body which is most easily blocked can be cleared and discharged. The invention has the advantages of large drainage area, high drainage efficiency, simple and convenient operation, good drainage effect and the like, and can clear away the blockage when in blockage.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural view of a spring support bracket and its associated components in the present invention.
Fig. 3 is another schematic view of the spring support bracket and its associated components of the present invention.
Fig. 4 is an enlarged view of a portion of the joint base, the pull-up post, and the pull-up nut of the present invention.
Fig. 5 is a schematic sectional structure view of fig. 3.
Detailed Description
The craniocerebral drainage catheter shown in the figure is provided with a tubular main body 4, a rear connecting frame 9 is arranged in the front end part of the tubular main body 4, and at least three positions on the periphery of the rear connecting frame are embedded into the inner wall of the tubular main body 4 and are fixedly connected with the inner wall; the front end of the tubular main body 4 is provided with an axially telescopic spring support frame, the rear end part of the spring support frame is fixedly connected with the front end of the tubular main body, as can be seen from fig. 1 and 2, the spring support frame is a cylindrical spiral spring 2, and the outer diameter of the cylindrical spiral spring 2 is not larger than that of the tubular main body; the rear end portion of the cylindrical coil spring 2 extends into the side wall of the front end portion of the tubular body 4, being connected to the rear connecting frame 9. Four guide slide bars 3 capable of freely sliding back and forth are uniformly distributed on a rear connecting frame 9 on the inner side of the spring supporting frame, a guide slide hole is formed in the rear connecting frame, and the guide slide bars 3 are penetrated in the guide slide hole in a penetrating mode and can freely slide back and forth to realize the free sliding connection of the front and rear. The guide slide rod 3 is parallel to the spring support frame (namely the axis of the cylindrical spiral spring 2). A dredging scraper 11 capable of freely sliding in the axial direction is arranged on a guide slide bar 3 in the spring support frame, a front connecting frame 12 is fixedly arranged on the guide slide bar 3 at the lower side of the dredging scraper 11, a front end cap 1 is arranged on the front connecting frame 12, and the front end cap 1 is in a solid hemispherical shape; the front end part of the cylindrical spiral spring 2 is connected with the front connecting frame 12, so that the structure is more stable. A pressure sensor 10 is arranged in the middle of the dredging scraper 11, a sleeve-shaped joint seat 5 communicated with the inside of the tubular main body 4 is arranged on the outer side of the rear part of the tubular main body 4, a baffle plate 18 is fixedly connected to the rear end of the joint seat 5, and a connecting pull rod 20 capable of sliding back and forth is arranged in the middle of the baffle plate 18; the middle part of the baffle 18 is provided with a baffle sliding hole, and the connecting pull rod can be penetrated in the baffle sliding hole in a front-back sliding way to realize front-back sliding connection. A limiting stop ring 22 is arranged on the periphery of a connecting pull rod 20 on the front side (in the joint seat) of the baffle plate 18, a reset pressure spring 21 is arranged on the connecting pull rod 20 between the limiting stop ring 22 and the baffle plate 18, a lifting post 17 is arranged on the connecting pull rod on the rear side (outside the joint seat) of the baffle plate, a lifting external thread is arranged on the outer side of the lifting post 17, a lifting nut 6 matched with the lifting external thread is arranged on the outer side of the lifting post 17, a lifting conducting wire 7 axially penetrates through the lifting post 17 and the connecting pull rod 20 and is fixedly connected with the lifting post 17 and the connecting pull rod 20 is arranged, the front end of the lifting conducting wire 7 is connected with a pressure sensor 10, and a sensing equipment joint 8 is arranged at the rear end of the lifting conducting wire 7 on the rear; the rear end of the lifting column is provided with a holding handle 14. The included angle between the joint seat 5 and the tubular main body is 20-30 degrees, and the resistance is small when the pull-up conducting wire slides in the joint seat and the tubular main body, so that the operation is convenient; the lifting conducting wire 7 comprises a lifting rope on the outer side and a conducting wire inside, the lifting rope is fixedly connected with the middle of the dredging scraper through the outer shell of the pressure sensor, and the conducting wire is connected with the sensing part of the pressure sensor. A reset mounting cover 15 embedded in the front end cap 1 is arranged on the front side of the front connecting frame 12, and a reset tension spring 13 which penetrates through the front connecting frame and can freely stretch and retract in the axial direction is arranged between the dredging scraper 11 and the front inner side wall of the reset mounting cover 15; when the front end cap is prepared, liquid soft rubber is injected into a mold, the front connecting frame with the resetting installation cover is placed on the liquid soft rubber, the resetting installation cover is positioned in the liquid soft rubber, the outer side face of the resetting installation cover is in full contact with the liquid soft rubber, and the liquid soft rubber is placed for shaping for a certain time. In the structure of the spring support frame and its related parts shown in fig. 3 and 5, the spring support frame is formed by four cylindrical helical springs 16 with thin diameters in an annular array, the front ends of the thin cylindrical helical springs 16 are fixedly connected with the front connecting frame 12, and the rear ends are fixedly connected with the rear connecting frame 9; the drainage area is large, the strength is high, the bending is not easy, and other structures are the same as the structures of the spring support frame and related parts shown in the figure 2.
The invention is further improved, a sliding friction plate 19 is arranged between the front end of the lifting nut and the rear side surface of the baffle plate, and the sliding friction plate 19 is made of smooth wear-resistant materials. The lifting nut is more labor-saving in rotation, and the blockage can be conveniently dredged.
When the drainage device is used, the rear end of the tubular main body is connected with the collection device, the joint of the sensing device is connected with the pressure monitoring device, the spring support frame at the front end of the tubular main body is placed at a drainage position in a ventricle, drainage liquid enters the tubular main body through the gap of the spring support frame, enters the collection device through the tubular main body, and real-time pressure data is transmitted to the pressure monitoring device through the pressure sensor and the lifting conduction wire. The gap area of the spring support frame is larger than that of the drainage hole in the prior art, the contact area with the wound surface is increased on the basis of ensuring enough strength, the wound surface damage is avoided, the drainage area is increased, and the drainage efficiency is high. When the spring wires of the spring support frame or the inside of the spring support frame is blocked by solid matters such as blood clots and the like and drainage is not smooth, one hand holds the holding handle or the lifting conducting wire to fix the lifting column, the other hand rotates the lifting nut which pushes the lifting column backwards, the lifting column and the connecting pull rod drive the dredging scraper to move backwards through the lifting conducting wire and the pressure sensor, the dredging scraper axially moves in the spring support frame, and the solid matters blocked between the spring wires of the spring support frame or the inside of the spring support frame are scraped and pushed into the tubular main body; in the initial stage of backward movement of the dredging scraper, under the action of the reset tension spring, the front connecting frame, the front end cap and the guide slide bar move backward, the spring support frame is compressed, the pitch between the spring steel wires of the spring support frame is gradually reduced, the blocked solid matters are extruded and cut, the guide slide bar slides backward and can also push and press the solid matters entering the front end part of the tubular main body backward, the blockage removing effect is good, the operation is simple and convenient, and the drainage effect is good; in the initial stage of backward movement of the dredging scraper, the backward movement speed of the dredging scraper is greater than the backward movement speed of the front connecting frame; when the compression spring support frame is compressed to be incapable of being compressed continuously (the spring steel wires of the compression spring are attached axially), the dredging scraper plate continuously moves backwards in the spring support frame to further push and press the blockage into the tubular main body, and the blockage removing effect is good; the initial stage of the backward movement of the dredging scraper, the axial movement of the spring support frame, the front connecting frame, the front end cap and the guide slide bar is slow and soft, the later stage of the backward movement of the dredging scraper is that the spring steel wire of the spring support frame is axially attached to the dredging scraper, a closed space is formed inside the dredging scraper, and the secondary damage to the affected part is not easy to cause. The lifting column is pushed backwards for a certain distance or completely pushed, the lifting nut is rotated reversely, and the lifting column and the connecting pull rod move forwards for resetting under the action of the resetting pressure spring when the lifting nut is rotated reversely; under the elastic force of the spring support frame, the front connecting frame moves forwards to reset, and the dredging scraper moves forwards to reset under the action of the reset tension spring to finish the operation of clearing the blockage at one time. The operation of clearing the blockage is repeated for two to three times, and the blockage at the drainage head at the front end part of the tubular main body which is most easily blocked can be cleared and discharged. The invention has the advantages of large drainage area, high drainage efficiency, simple and convenient operation, good drainage effect and the like, and can clear away the blockage when in blockage.

Claims (6)

1. A craniocerebral drainage catheter is provided with a tubular main body and is characterized in that a rear connecting frame is arranged in the front end part of the tubular main body, a spring supporting frame which can axially stretch and retract is arranged at the front end of the tubular main body, the rear end part of the spring supporting frame is fixedly connected with the front end of the tubular main body, at least three guide slide bars which can freely slide back and forth are arranged on the rear connecting frame at the inner side of the spring supporting frame, a dredging scraper which can freely slide in the axial direction is arranged on the guide slide bars in the spring supporting frame, a front connecting frame is fixedly arranged on the guide slide bars at the lower side of the dredging scraper, a front end cap is arranged on the front connecting frame, a pressure sensor is arranged in the middle of the dredging scraper, a sleeve-shaped joint seat which is communicated with the inside of the tubular main body is arranged on the outer side of the rear part of the tubular main, a reset pressure spring is arranged between the limiting retaining ring and the baffle, a lifting column is arranged on a connecting pull rod at the rear side of the baffle, a lifting external thread is arranged on the outer side of the lifting column, a lifting nut matched with the lifting external thread is arranged on the outer side of the lifting column, a lifting conducting wire which penetrates through the lifting column and the connecting pull rod and is fixedly connected with the lifting column and the connecting pull rod is arranged, the front end of the lifting conducting wire is connected with a pressure sensor, and a sensing equipment joint is arranged at the rear end of the lifting conducting wire at the rear side of the lifting column; the front side of the front connecting frame is provided with a resetting installation cover embedded into the front end cap, and a resetting tension spring is arranged between the dredging scraper and the resetting installation cover.
2. The cranial drainage catheter of claim 1, wherein the spring support is a cylindrical coil spring having an outer diameter no greater than the outer diameter of the tubular body.
3. The craniocerebral drainage catheter of claim 1, wherein the spring support frame is formed by at least three cylindrical helical springs in an annular array, the front ends of the cylindrical helical springs are fixedly connected with the front connecting frame, and the rear ends of the cylindrical helical springs are fixedly connected with the rear connecting frame.
4. A craniocerebral drainage catheter according to claim 1, characterized in that a sliding friction plate is arranged between the front end of the lifting nut and the rear side surface of the baffle plate, and the sliding friction plate is made of smooth wear-resistant material.
5. The craniocerebral drainage catheter of claim 1, wherein the lifting conducting wire comprises an outer lifting rope and an inner conducting wire, the lifting rope is connected with the middle part of the dredging scraper through an outer shell of the pressure sensor, and the conducting wire is connected with a sensing part of the pressure sensor.
6. The craniocerebral drainage catheter of claim 1, wherein a holding handle is arranged at the rear end of the lifting column.
CN202010409673.8A 2020-05-15 2020-05-15 Craniocerebral drainage catheter Active CN111529773B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010409673.8A CN111529773B (en) 2020-05-15 2020-05-15 Craniocerebral drainage catheter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010409673.8A CN111529773B (en) 2020-05-15 2020-05-15 Craniocerebral drainage catheter

Publications (2)

Publication Number Publication Date
CN111529773A true CN111529773A (en) 2020-08-14
CN111529773B CN111529773B (en) 2022-09-06

Family

ID=71970909

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010409673.8A Active CN111529773B (en) 2020-05-15 2020-05-15 Craniocerebral drainage catheter

Country Status (1)

Country Link
CN (1) CN111529773B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113398443A (en) * 2021-07-28 2021-09-17 西安医学院第二附属医院 General surgery department is with preventing blockking up drainage tube
CN113916721A (en) * 2021-10-26 2022-01-11 四川省水利科学研究院 Portable hydraulic engineering quality detector

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08131551A (en) * 1994-11-04 1996-05-28 Yoshimasa Obayashi Catheter for elimination of thrombus
CN2358907Y (en) * 1998-10-09 2000-01-19 赖金平 Anti-blocking drainage apparatus
WO2016176065A1 (en) * 2015-04-30 2016-11-03 Access Scientific, Llc Vascular access device
CN106512186A (en) * 2016-11-25 2017-03-22 威海恒基伟业信息科技发展有限公司 Intracranial pressure drainage guide pipe
CN107929823A (en) * 2017-11-16 2018-04-20 李时英 A kind of drainage system and its application method
US20180280593A1 (en) * 2017-04-03 2018-10-04 Boehringer Technologies, Lp Medical drainage device with squeegee-based lumen cleaner and method of draining a biological fluid from the body of a patient

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08131551A (en) * 1994-11-04 1996-05-28 Yoshimasa Obayashi Catheter for elimination of thrombus
CN2358907Y (en) * 1998-10-09 2000-01-19 赖金平 Anti-blocking drainage apparatus
WO2016176065A1 (en) * 2015-04-30 2016-11-03 Access Scientific, Llc Vascular access device
CN106512186A (en) * 2016-11-25 2017-03-22 威海恒基伟业信息科技发展有限公司 Intracranial pressure drainage guide pipe
US20180280593A1 (en) * 2017-04-03 2018-10-04 Boehringer Technologies, Lp Medical drainage device with squeegee-based lumen cleaner and method of draining a biological fluid from the body of a patient
CN107929823A (en) * 2017-11-16 2018-04-20 李时英 A kind of drainage system and its application method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113398443A (en) * 2021-07-28 2021-09-17 西安医学院第二附属医院 General surgery department is with preventing blockking up drainage tube
CN113398443B (en) * 2021-07-28 2022-08-16 西安医学院第二附属医院 General surgery department is with preventing blockking up drainage tube
CN113916721A (en) * 2021-10-26 2022-01-11 四川省水利科学研究院 Portable hydraulic engineering quality detector
CN113916721B (en) * 2021-10-26 2023-08-22 四川省水利科学研究院 Portable hydraulic engineering quality detector

Also Published As

Publication number Publication date
CN111529773B (en) 2022-09-06

Similar Documents

Publication Publication Date Title
CN111529773B (en) Craniocerebral drainage catheter
WO2022022223A1 (en) Blood vessel dredging and cleaning device
EA031811B1 (en) Device for retrieving bodies from a tubular structure
CN211675628U (en) Urinary tract anesthesia flushing device
CN115040757A (en) Thrombolytic infusion device and plugging guide wire thereof
CN202313231U (en) Hose cap used for endoscope and hose
JP6436572B2 (en) Medical device
CN109925030A (en) A kind of dermatological puncture needle
CN211751357U (en) Urethral catheterization device for urological department clinical operation
CN202154928U (en) Double-mushroom bracket drainage tube for ureter
CN211325381U (en) Endoscope stone-taking basket
CN218943435U (en) Dredging guide wire for thrombus suction device and thrombus suction device
CN215608051U (en) Severe nursing drainage device
CN113209454A (en) Catheter
CN209060305U (en) Balloon surgical cannula propeller
CN217091604U (en) Abscess puncture drainage device
CN112156236A (en) Liver and gall drainage device
CN213406776U (en) Nephrology department is with diagnosing bed that has dialysis tubing limit structure
CN206934384U (en) A kind of drainage tube dredges external member
CN210542813U (en) Neurosurgery nursing drainage frame
CN213489132U (en) Stone-taking net basket
CN215534801U (en) Assembled ureter guide sheath
CN204072203U (en) A kind of spring-like nature tract foreign body plugging device
CN211749881U (en) Mechanical stone breaking device
CN215349479U (en) Movable nucleic acid collecting therapeutic disc

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