CN112370122A

CN112370122A - Blood vessel hole digger

Info

Publication number: CN112370122A
Application number: CN202011229473.0A
Authority: CN
Inventors: 刘文斌; 刘德鹏; 薛利刚; 蔡新海
Original assignee: Huarong Kechuang Biotechnology Tianjin Co ltd
Current assignee: Huarong Kechuang Biotechnology Tianjin Co ltd
Priority date: 2020-11-06
Filing date: 2020-11-06
Publication date: 2021-02-19

Abstract

The invention provides a blood vessel hole opener, which comprises a shell and a core bar arranged in the shell, wherein the core bar comprises a bar body and a cutting knife, the cutting knife is arranged at the bottom of the bar body, and one side of the bar body is provided with a rack; the shell comprises a shell body and a driving device arranged on the shell body, a transmission gear meshed with the rack is arranged on one side of the driving device, the driving device can drive the transmission gear to rotate positively and negatively, and the transmission gear drives the core rod to move up and down through the meshing movement with the rack. The invention aims to realize the purpose of returning to the original position after the blood vessel cutting is finished through the driving device and the control system, thereby saving the operation time and reducing the operation cost; meanwhile, the blood vessel is prevented from flowing back to the inside of the cutting system when the cutting knife finishes cutting and returns to the original position through the hemostatic guide sleeve.

Description

Blood vessel hole digger

Technical Field

The invention belongs to the field of medical instruments, and particularly relates to a blood vessel hole opener.

Background

At present, vascular hole digger usually includes the cutting system that is used for cutting the blood vessel, and current cutting system is disposable structure, and in case press the start button, the cutting knife stops and can not resume to initial condition after moving forward a distance under the effect of spring force. If the doctor presses down due to misoperation when being far away from the blood vessel, the doctor can only open another set of instruments again to open the hole again, thereby wasting operation time and increasing operation cost.

Summary of the invention

In view of the above, the present invention provides a blood vessel hole opener, which can return to the original position after completing the cutting of blood vessel by the positive and negative rotation of the motor, thereby saving the operation time and reducing the operation cost; meanwhile, the blood vessel can be prevented from flowing back to the inside of the cutting system when the cutting knife finishes cutting and retreats to the original position.

In order to achieve the purpose, the technical scheme of the invention is realized as follows:

a blood vessel hole opener comprises a shell and a core bar arranged in the shell, wherein the core bar comprises a bar body and a cutting knife, the cutting knife is arranged at the bottom of the bar body, and a rack is arranged on one side of the bar body; the shell comprises a shell body and a driving device arranged on the shell body, a transmission gear meshed with the rack is arranged on one side of the driving device, the driving device can drive the transmission gear to rotate positively and negatively, and the transmission gear drives the core rod to move up and down through the meshing movement with the rack.

Further, drive arrangement is hand cranking device, hand cranking device includes pivot, crank, the pivot respectively with crank, drive gear fixed connection.

Further, drive arrangement is electric actuator, electric actuator includes battery, motor, pivot and control system, the pivot respectively with motor, drive gear fixed connection, battery and motor electric connection, control system can control the positive and negative rotation of motor.

Furthermore, the control system comprises a power switch and a limit switch, the power switch is arranged on the outer side of the shell, and the limit switch is arranged at the bottom in the shell.

Furthermore, the bottom of the rod body is also provided with a boss, and the boss is positioned between the bottom of the rod body and the cutting knife.

Furthermore, the hemostatic sheath is arranged on the slender part of the lower end of the shell and comprises a base, an end cover and a sealing gasket arranged between the base and the end cover.

Furthermore, the base is tightly attached to the bleeding opening, and a through cross seam is arranged on the sealing pad.

Furthermore, the base is tightly attached to the bleeding opening, and the sealing gasket is made of elastic materials.

Further, the cutting knife is a circular ring blade.

Compared with the prior art, the vascular hole opener has the following advantages:

(1) the existing cutting system is of a disposable structure, namely once a starting button is pressed down, a cutting knife moves forwards under the action of spring elasticity for a certain distance and then stops and cannot be restored to an initial state. If the doctor presses down due to misoperation when being far away from the blood vessel, the doctor can only open another set of instruments again to open the hole again, thereby wasting operation time and increasing operation cost. The blood vessel hole opener is created to return to the original position after the blood vessel is cut through the driving device and the control system, so that the operation time is saved, and the operation cost is reduced; meanwhile, the blood vessel is prevented from flowing back to the inside of the cutting system when the cutting knife finishes cutting and returns to the original position through the hemostatic guide sleeve.

(2) When the cutting knife is inserted in the forward direction, the hemostatic sheath is opened by utilizing the elastic deformation principle of the sealing gasket, and when the cutting knife is withdrawn, the bottom surface of the sealing gasket presses the cross seam to be closed due to blood operation, so that hemostasis is realized.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the invention without limitation. In the drawings:

FIG. 1 is a schematic diagram of the overall structure of the embodiment of the present invention;

fig. 2 is a schematic view of a motor and a connection structure according to an embodiment of the present invention;

FIG. 3 is a partially enlarged view of a limit switch and a connection structure thereof according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of a circuit connection of a limit switch according to an embodiment of the present invention;

FIG. 5 is a schematic circuit diagram of an embodiment of the present invention;

FIG. 6 is a schematic view of a hemostatic sheath according to an embodiment of the present invention;

FIG. 7 is a schematic view of a gasket according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a hand-operated apparatus according to an embodiment of the present invention.

Description of reference numerals:

1-a motor; 2-a transmission gear; 3-a battery; 4-a transmission gear; 5-a rod body; 6-a shell; 7-limit switch; 8-end cap; 9-a sealing gasket; 10-boss; 11-a cutting knife; 12-a power switch; 13-a base; 14-a cross-shaped seam; 15-a rotating shaft; 16-a crank.

Detailed Description

It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which are merely for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.

In the description of the invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be construed broadly, e.g. as being fixed or detachable 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 creation of the present invention can be understood by those of ordinary skill in the art through specific situations.

The invention will be described in detail with reference to the following embodiments with reference to the attached drawings.

As shown in fig. 1 to 7, a blood vessel hole opener comprises a shell and a core bar arranged in the shell, wherein the core bar comprises a bar body 5 and a cutting knife 11, the cutting knife 11 is arranged at the bottom of the bar body 5, and a rack 4 is arranged on one side of the bar body 5; the shell comprises a shell body and a driving device arranged on the shell body, wherein a transmission gear 2 meshed with the rack 4 is arranged on one side of the driving device, the driving device can drive the transmission gear 2 to rotate positively and negatively, and the transmission gear 2 drives the core rod to move up and down through the meshing motion with the rack 4.

The cutting knife among the current cutting system carries out single direction movement by original spring drive, and this embodiment utilizes drive arrangement drive to drive the cutting knife and implements the vascular cutting, accomplishes the back at the cutting blood vessel, utilizes drive gear 2 to drive the core bar through the meshing motion with rack 4 and reciprocates, can make the cutting knife move back to original position, practices thrift operation time, reduces the operation cost.

Preferably, the driving device is an electric device, the electric device comprises a battery 3, a motor 1, a rotating shaft and a control system, the rotating shaft is respectively and fixedly connected with the motor 1 and a transmission gear 4, the battery 3 is electrically connected with the motor 1, and the control system can control the positive and negative rotation of the motor 1.

The control system comprises a power switch 12 and a limit switch 7, wherein the power switch 12 is arranged on the outer side of the shell, and the limit switch 7 is arranged at the bottom in the shell. The bottom of the rod body 5 is also provided with a boss 10, and the boss 10 is positioned between the bottom of the rod body 5 and the cutting knife 11. The cutting knife 11 is a circular ring blade.

When implementing the vascular cutting, motor drive moves the meshing motion of moving gear 2 and rack 4, drives core bar and cutting knife and implements the vascular cutting, accomplishes the back at the cutting blood vessel, can make the cutting knife move back to original position to utilize control system driving motor just, the reversal, drive the cutting knife and move back to original position after the cutting blood vessel is accomplished, the location is more accurate, controls more conveniently. The cutting knife that has changed among the present cutting system is by spring drive, carries out single direction movement and is used for cutting the blood vessel, has solved present cutting knife and has stopped and can not resume to the problem of initial condition again after a distance of forward motion under the effect of spring force.

Optionally, as shown in fig. 8, the structure of the hand cranking device is schematically illustrated, the driving device is a hand cranking device, the hand cranking device includes a rotating shaft 16 and a crank 15, and the rotating shaft 16 is respectively fixedly connected with the crank 15 and the transmission gear 2. The transmission gear 2 is driven to work by rotating the crank handle 15 in the forward direction, and after the blood vessel is cut, the cutting knife 11 is driven to return to the original position by rotating the crank handle 15 in the reverse direction, so that the manual control is more convenient, and the energy-saving and environment-friendly effects are achieved.

This implementation limit switch 7 can control motor 1 just, the reversal, can make the core bar reciprocate to realize punching and the technical effect who returns the original position after punching, drive gear 2 through with the meshing motion of rack 4 drives the core bar and reciprocates, and limit switch 7 control motor just, the reversal, thereby reach the technical effect that can return the original position after the hole puncher punches.

As shown in fig. 6 and 7, the hemostatic sheath is arranged on the slender part of the lower end of the shell and comprises a base 13, an end cover 8 and a sealing gasket 9 arranged between the base 13 and the end cover 8; the base 13 is tightly attached to the bleeding opening, and a through cross seam 14 is arranged on the sealing gasket 6; the base 13 is tightly attached to the bleeding opening, and the sealing gasket 6 is made of elastic materials. A hemostatic sheath is added, so that the blood vessel can be prevented from flowing back to the inside of the cutting system when the cutting knife finishes cutting and retreats to the original position; when the cutting knife is inserted in the forward direction, the sealing pad is opened due to the elastic action, and after the cutting knife is withdrawn, the bottom surface of the sealing pad is pressed tightly at the cross seam due to the blood operation, so that the hemostasis is realized in a closed manner.

As shown in fig. 5, for the circuit schematic diagram of the inventive embodiment of the present invention, after the power switch is pressed, the current flows through a switch a 1-a-B1 to drive the motor to rotate forward, the motor drives the gear and the gear to drive the rack on the core bar to move downward, when the cutting knife finishes cutting, the bottom of the core bar touches the contact of the limit switch, the limit switch acts to switch the single-pole double-throw switch from a1 and B1 to a2 and B2, the current flows through a switch B2-B-a 2 to drive the motor to rotate backward, and the motor drives the gear and the gear to drive the rack on the core bar to move upward to the original position.

As shown in fig. 4, for the circuit connection schematic diagram of the limit switch according to the embodiment of the present invention, the limit switch has two normally open contacts (a and a1, B and B1) and two normally closed contacts (a and a2, B and B2), when the limit switch contacts are not actuated, a and a1 are turned on, B and B1 are turned on, when the limit switch contacts are actuated, a and a2 are turned on, and B2 are turned on.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the invention, so that any modifications, equivalents, improvements and the like, which are within the spirit and principle of the present invention, should be included in the scope of the present invention.

Claims

1. The utility model provides a vascular hole digger, includes the shell and sets up the core bar in the shell which characterized in that: the core rod comprises a rod body (5) and a cutting knife (11), the cutting knife (11) is arranged at the bottom of the rod body (5), and a rack (4) is arranged on one side of the rod body (5); the shell comprises a shell body (6) and a driving device arranged on the shell body (6), a transmission gear (2) meshed with the rack (4) is arranged on one side of the driving device, the driving device can drive the transmission gear (2) to rotate positively and negatively, and the transmission gear (2) drives the core rod to move up and down through the meshing movement of the transmission gear and the rack (4).

2. The vascular tap of claim 1, wherein: the driving device is a hand cranking device, the hand cranking device comprises a rotating shaft (16) and a crank (15), and the rotating shaft (16) is fixedly connected with the crank (15) and the transmission gear (2) respectively.

3. The vascular tap of claim 1, wherein: the driving device is an electric device, the electric device comprises a battery (3), a motor (1), a rotating shaft and a control system, the rotating shaft is respectively fixedly connected with the motor (1) and a transmission gear (4), the battery (3) is electrically connected with the motor (1), and the control system can control the positive rotation and the negative rotation of the motor (1).

4. The vascular tap of claim 1, wherein: the control system comprises a power switch (12) and a limit switch (7), the power switch (12) is arranged on the outer side of the shell, and the limit switch (7) is arranged at the bottom in the shell.

5. The vascular tap of claim 1, wherein: the bottom of the rod body (5) is further provided with a boss (10), and the boss (10) is located between the bottom of the rod body (5) and the cutting knife (11).

6. The vascular tap of claim 1, wherein: the hemostatic sheath is arranged at the slender part of the lower end of the shell and comprises a base (13), an end cover (8) and a sealing gasket (9) arranged between the base (13) and the end cover (8).

7. The vascular tap of claim 6, wherein: the base (13) is tightly attached to the bleeding opening, and the sealing gasket (6) is provided with a through cross seam (14).

8. The vascular tap of claim 6, wherein: the base (13) is tightly attached to the bleeding opening, and the sealing gasket (6) is made of elastic materials.

9. The vascular tap of claim 1, wherein: the cutting knife (11) is a circular blade.