CN214293293U

CN214293293U - Cutting device for medical catheter

Info

Publication number: CN214293293U
Application number: CN202120090001.5U
Authority: CN
Inventors: 杨文辉; 李元元; 郭克; 黄振东
Original assignee: Sano Shenchang Medical Technology Co ltd
Current assignee: Sano Shenchang Medical Technology Co ltd
Priority date: 2021-01-13
Filing date: 2021-01-13
Publication date: 2021-09-28
Anticipated expiration: 2031-01-13

Abstract

The utility model provides a pair of a cutting device for medical catheter belongs to medical instrument technical field, include: a base; the cutting assembly is arranged on the base and provided with a mounting seat capable of moving up and down, an annular blade is rotatably connected to the mounting seat, and the cutting edges of the annular blade are positioned in the same vertical plane; the cutting table is arranged on the base and is provided with an accommodating groove with an opening facing the annular blade, and a medical catheter is suitable to be placed in the accommodating groove; the annular blade is suitable for moving downwards to enable the blade edge of the annular blade to be in contact with the medical catheter in the containing groove, and the annular blade is driven to perform annular cutting on the medical catheter by the axial rotation of the medical catheter. The utility model discloses a cutting device through reciprocating of mount pad, adjusts the degree of depth that the annular blade cut into medical pipe, realizes the hoop cutting to medical pipe, can avoid medical pipe's radial deformation.

Description

Cutting device for medical catheter

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to a cutting device for medical catheter.

Background

The medical catheter has smaller specification, and particularly, the outer diameter of an intracranial thrombus taking catheter or microcatheter is sometimes less than 0.5 mm; the medical catheter has thinner integral wall thickness, softer inner and outer layers, and an interlayer of a woven mesh of metal silk threads or polymer fibers or a wound spring; the requirement on the cutting mode is higher, burrs visible to naked eyes cannot exist, the cut needs to be clean and flat, and the high polymer material cannot have sharp corners and deformation.

Currently, medical catheters are generally cut in a single contact, which may cause the catheter tube to collapse or deform, resulting in failure of the entire catheter.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the defect that the single face contact cutting among the prior art can lead to medical pipe to warp the inefficacy to a cutting device who avoids the body to warp is provided.

In order to solve the technical problem, the utility model provides a cutting device for medical catheter, include:

a base;

the cutting assembly is arranged on the base and provided with an installation seat capable of moving up and down, an annular blade is rotatably connected to the installation seat, and the cutting edges of the annular blade are positioned in the same vertical plane;

the cutting table is arranged on the base and is provided with a containing groove with an opening facing the annular blade, and a medical catheter is suitable to be placed in the containing groove;

the annular blade is suitable for moving downwards to enable the cutting edge of the annular blade to be in contact with the medical catheter in the containing groove, and the annular blade is driven to perform annular cutting on the medical catheter through axial rotation of the medical catheter.

Preferably, the cutting assembly comprises:

the cylinder is arranged on the base, and the driving end of the cylinder vertically faces the base; the mounting seat is connected on the drive end of cylinder, annular blade passes through the pivot and rotates to be connected on the mounting seat.

Preferably, the annular blade is detachably sleeved on the rotating shaft.

Preferably, the containing grooves are provided with two spaced containing grooves, a bearing shaft is rotatably connected between the two containing grooves, and the bearing shaft is suitable for rotatably supporting the medical catheter.

Preferably, the containing groove is internally provided with an arc-shaped supporting surface which is suitable for supporting the medical catheter.

Preferably, the cutting table is provided with a supporting block which is detachably connected, and the containing groove is formed in the supporting block.

Preferably, the method further comprises the following steps:

the micro lens is arranged on the base and faces the annular blade and the cutting table simultaneously;

the display is arranged on the base and is in signal connection with the micro lens.

Preferably, the micro lens is sleeved with an annular lamp in the circumferential direction.

The utility model discloses technical scheme has following advantage:

1. the utility model provides a cutting device for medical catheter, the annular blade is rotationally connected on the mounting seat, and the depth of the annular blade cutting into the medical catheter is adjusted through the up-and-down movement of the mounting seat; when the annular blade contacts the medical catheter, an operator rapidly rotates the medical catheter to drive the annular blade to rotate so as to realize annular cutting of the medical catheter; the cutting device can avoid radial deformation of the medical catheter.

2. The utility model provides a cutting device for medical catheter, annular blade detachably cover is established in the pivot, is convenient for according to the cutting edge condition, change the blade, practices thrift the cost.

3. The utility model provides a cutting device for medical catheter, in the rotation process of the medical catheter, the bearing shaft plays a supporting role, and the bending of the catheter body is avoided; the bearing shaft is arranged in a rotating way, so that the frictional resistance between the bearing shaft and the medical catheter is reduced.

4. The utility model provides a cutting device for medical catheter, the arc holding surface who puts the appearance groove contacts with medical catheter, reduces medical catheter's rotational resistance.

5. The utility model provides a cutting device for medical catheter places the appearance groove and locates on can dismantling the supporting shoe of connection, be convenient for according to medical catheter's external diameter, change different supporting shoes, improve cutting device's compatibility.

6. The utility model provides a cutting device for medical catheter through the focus of adjustment microscope head, can observe the contact condition of medical catheter and annular blade clearly, is convenient for accurately adjust annular blade's cutting position.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a cutting device for medical catheters according to the present invention.

Fig. 2 is an enlarged view of the area a in fig. 1.

Fig. 3 is a schematic view of the connection relationship between the rotating shaft and the annular blade.

FIG. 4 is a schematic view of the cutting station.

Fig. 5 is a schematic structural view of a cutting device for medical catheters according to the present invention.

Description of reference numerals:

1. a base; 2. cutting table; 3. a display; 4. a micro-lens; 5. supporting the ground feet; 6. a back plate; 7. a cylinder; 8. an annular blade; 9. a first connecting plate; 10. a second connecting plate; 11. locking a ring; 12. a rotating shaft; 13. a support block; 14. placing a containing groove; 15. a load bearing shaft; 16. an annular lamp; 17. a first link; 18. a base plate; 19. a second link.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

The cutting device for medical catheter provided by the embodiment comprises: the cutting device comprises a base 1, a cutting assembly, a cutting table 2, a display 3 and a micro-lens 4.

As shown in fig. 1 and 2, four foot supports 5 are symmetrically connected to the bottom surface of the base 1, and the base 1 is supported by the foot supports 5; the top surface of the base 1 is vertically connected to a back plate 6, and the cutting assembly is connected to the back plate 6; the cutting assembly includes: a cylinder 7, a mounting seat, and an annular blade 8; the cylinder 7 is connected to the front end face of the back plate 6 through a backing plate 18, a driving rod of the cylinder is arranged vertically downwards, and a driving plate arranged horizontally is arranged at the end part of the driving rod; the air cylinder 7 is a duplex air cylinder 7 and is provided with a fine adjustment valve capable of adjusting the size of air flow; the mounting seat is provided with a first connecting plate 9 and two second connecting plates 10, the first connecting plate 9 is connected to the bottom surface of the driving plate, and the two second connecting plates 10 are vertically and alternately connected to the bottom surface of the first connecting plate 9; the annular blade 8 is rotatably connected between the two second connecting plates 10 through a rotating shaft 12, and the annular outer edge of the annular blade 8 is provided with a cutting edge.

As shown in fig. 3, the annular blade 8 is concentrically sleeved on the rotating shaft 12, and the annular blade 8 is locked and fixed by a locking ring 11; the two locking rings 11 are sleeved on the rotating shaft 12, and the annular blade 8 is clamped between the two locking rings 11; the locking ring 11 is provided with a threaded hole in the circumferential direction, and a screw penetrates through the threaded hole to realize abutting locking with the rotating shaft 12.

As shown in fig. 1 and 4, the cutting table 2 is connected to the top surface of the base 1 and is located right below the annular blade 8; the cutting table 2 is of a concave structure and is provided with support plates which are symmetrical left and right; the top end of the supporting plate is detachably connected with a supporting block 13, the supporting block 13 is provided with an accommodating groove 14 with an opening at the top end, and the inner bottom wall of the accommodating groove 14 is an arc-shaped surface; a bearing shaft 15 is rotatably connected between the two support plates, and the highest point of the bearing shaft 15 is flush with the lowest point of the accommodating groove 14; the medical catheter is placed in the accommodating groove 14, and the bearing shaft 15 can rotatably support the medical catheter.

As shown in fig. 1 and 5, the back plate 6 has a through hole penetrating forward and backward, and the annular blade 8, the supporting block 13 and the bearing shaft 15 are exposed in the through hole; the microscope lens 4 is connected to the top end of the base 1 through a first connecting rod 17 and is located at the rear end of the back plate 6, the microscope lens 4 is arranged right opposite to the through hole, and the microscope lens 4 can acquire the dynamic position relation between the annular blade 8 and the medical catheter; wherein, the cover is equipped with annular lamp 16 in the circumference of microscope head 4, annular lamp 16 carries out the light filling at the collection in-process. The display 3 is connected to the top end of the base 1 through a second connecting rod 19 and is in signal connection with the micro lens 4, and the display 3 can display the dynamic position relation between the annular blade 8 and the medical catheter; according to the real-time dynamic state of the display 3, the through hole and the air cylinder 7 control the up-and-down movement of the annular blade 8.

The working principle is as follows:

the medical catheter is arranged between two accommodating grooves 14 in a rack mode, and the control cylinder 7 drives the annular blade 8 to move downwards to enable the annular blade 8 to be in contact with the medical catheter; the medical catheter is rotated rapidly, so that the annular blade 8 is driven to rotate, annular cutting of the medical catheter is achieved, and radial deformation of the medical catheter can be avoided.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. A cutting device for a medical catheter, comprising:

a base (1);

the cutting assembly is arranged on the base (1) and is provided with a mounting seat capable of moving up and down, an annular blade (8) is rotatably connected to the mounting seat, and the cutting edges of the annular blade (8) are positioned in the same vertical plane;

the cutting table (2) is arranged on the base (1), a containing groove (14) with an opening facing the annular blade (8) is formed in the cutting table (2), and a medical catheter is suitable to be placed in the containing groove (14);

the annular blade (8) is suitable for moving downwards to enable the blade edge of the annular blade to be in contact with the medical catheter in the containing groove (14), and the annular blade (8) is driven to perform annular cutting on the medical catheter through axial rotation of the medical catheter.

2. The cutting device for a medical catheter as set forth in claim 1, wherein the cutting assembly includes:

the cylinder (7) is arranged on the base (1), and the driving end of the cylinder vertically faces the base (1); the mounting seat is connected on the driving end of the air cylinder (7), and the annular blade (8) is rotatably connected on the mounting seat through a rotating shaft (12).

3. The cutting device for medical catheters as claimed in claim 2, characterized in that the annular blade (8) is detachably fitted over the shaft (12).

4. The cutting device for medical catheters as claimed in any one of claims 1 to 3, characterized in that the housing groove (14) has two spaced apart slots, a carrying shaft (15) being rotatably connected between the two housing grooves (14), the carrying shaft (15) being adapted to rotatably support a medical catheter.

5. Cutting device for medical catheters according to any of claims 1-3, characterised in that the receiving groove (14) has an arcuate support surface therein adapted to support a medical catheter.

6. The cutting device for medical catheters as claimed in any one of claims 1 to 3, characterized in that the cutting table (2) has a detachably connected support block (13) thereon, the accommodating groove (14) being provided on the support block (13).

7. The cutting device for a medical catheter as set forth in any of claims 1-3, further comprising:

the microscope lens (4) is arranged on the base (1) and faces the annular blade (8) and the cutting table (2) simultaneously;

the display (3) is arranged on the base (1), and the display (3) is in signal connection with the microscope lens (4).

8. The cutting device for medical catheters as claimed in claim 7, characterized in that the microscope head (4) is circumferentially sheathed with an annular lamp (16).