CN210383963U - Timing blocking device - Google Patents

Abstract

The utility model discloses a timing blocking device. The device comprises: the pipe clamp is configured to be in an opening state and a closing state, the pipe clamp is configured to be clamped in the blood vessel in the closing state and form an annular channel surrounding the blood vessel with the blood vessel, the pipe clamp is configured to be provided with a core inlet communicated with the annular channel, and the pipe clamp is configured to be separated from the blood vessel in the opening state; a clamp configured to be detachably connected to the pipe clamp, and configured to switch the pipe clamp between an open state and a closed state when connected to the pipe clamp; an expansion core configured such that when the pipe clamp is in a closed state, one end fills the annular passage through the core inlet and the other end is connected to the fluid pump; a peristaltic pump configured to communicate with the inflation wick; a timer configured to drive the peristaltic pump to inflate the inflation core to the occluded state at the beginning of a preset occlusion time and to deflate the inflation core to the non-occluded state at the end of the occlusion time.

Description

Timing blocking device

Technical Field

The utility model relates to the field of medical equipment, particularly, relate to a timing blocking device for blocking blood vessel in art.

Background

Control of intraoperative bleeding is a problem in general surgery; because of the abundant blood supply of internal organs and complicated anatomy, the internal blood vessels and peripheral important arteriovenous vessels are easily damaged when the operations of organ transplantation, repair and excision are carried out, and then massive hemorrhage is caused, thus endangering the life of a patient.

At present, a common method for protecting a large blood vessel which cannot be disconnected and needs to be protected is to wrap a related sheathed large blood vessel by using soft materials such as a silicone tube and the like for 1-2 weeks, then tighten the wrapped large blood vessel, and then fix the wrapped part by using hemostatic forceps, so as to achieve the purpose of blocking blood flow. The above method has the advantage of not requiring excessive anatomical organs or blood vessels; the defect is that the medical staff is dependent on manual operation, and partial or all blood flow can not be blocked well in the operation each time.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides an at least, disclose a timing blocking device. Through the utility model discloses a device can realize in the operation timing realize blocking to blood flow in some or all blood vessels in blocking the time.

The device comprises:

the clamp comprises a pipe clamp and a clamping device, wherein the pipe clamp is configured to be in an opening state and a closing state, the pipe clamp is configured to be clamped in a blood vessel in the closing state and forms an annular channel surrounding the blood vessel with the blood vessel, the pipe clamp is configured to be provided with a core inlet communicated with the annular channel, and the pipe clamp is configured to be separated from the blood vessel in the opening state;

a clamp configured to be detachably connected to the pipe clamp, and configured to switch the pipe clamp between the open state and the closed state when connected to the pipe clamp;

an expansion core configured such that when the pipe clamp is in the closed state, one end fills the annular passage through the core inlet and the other end is connected to a fluid pump;

a peristaltic pump configured to communicate with the inflation core;

a timer configured to drive the peristaltic pump to inflate the inflation core to an occluded state at the beginning of a preset occlusion time, and to deflate the inflation core to a non-occluded state at the end of the occlusion time.

In some embodiments of the present disclosure, the timer comprises:

at least one timing key configured to output a level signal representing a preset time length when triggered;

a first amplification circuit configured to amplify the level signal into an amplified signal;

a processing circuit configured to output a forward start signal in accordance with the amplified signal and to output a reverse start signal at the end of the blocking time;

a drive circuit configured to forward activate the peristaltic pump in accordance with the forward activation signal and reverse activate the peristaltic pump in accordance with the reverse activation signal.

In some embodiments of the present disclosure, the timer includes a delay circuit and an early warning circuit;

the delay circuit is configured to delay the forward start signal and the reverse start signal;

the processing circuit is configured to start the peristaltic pump in a forward direction according to the delayed forward start signal and to start the peristaltic pump in a reverse direction according to the delayed reverse start signal;

the early warning circuit is configured to generate start blocking early warning information and end blocking early warning information according to the forward starting signal and the reverse starting signal.

In some embodiments of the present disclosure, the tube clamp is configured to be made of an elastic material and to run through in the middle, and the tube clamp is configured with an opening;

the clamp is configured to apply a force to open or release the opening while maintaining the opening normally closed when connected to the conduit clamp.

In some embodiments of the present disclosure, the pipe clamp is configured to have an upper plate secured to an upper end of the opening and a lower plate secured to a lower end; the upper plate is configured to define an upper channel and the lower plate is configured to define a lower channel;

the clamp is configured as a first shear clamp, an upper collet of the first shear clamp is configured with an upper protrusion that is snap-fitted with the upper groove on one side, and a lower collet is configured with a lower protrusion that is snap-fitted with the lower groove on one side.

In some embodiments of the present disclosure, the clamp is configured as a symmetrical combination structure of two second shear clamps, which are respectively connected to both sides of the pipe clamp; the upper chuck of the second shear clamp is provided with an upper protrusion embedded with the upper groove on the same side, and the lower chuck is provided with a lower protrusion embedded with the lower groove on the same side;

the two second shear clamps are connected through an elastic piece.

In some embodiments of the present disclosure, the peristaltic pump is configured to communicate with the expansion core through a solenoid valve;

the timer is configured to drive the peristaltic pump to inflate the inflation core to a blocked state at the beginning of a preset blocking time and to reverse the solenoid valve, and to open the solenoid valve at the end of the blocking time and to drive the peristaltic pump to deflate the inflation core to the non-blocked state.

In some embodiments of the present disclosure, the solenoid valve is configured as a three-way solenoid valve;

one inlet of the three-way electromagnetic valve is connected with the peristaltic pump, one outlet of the three-way electromagnetic valve is connected with the expansion core, and the other outlet of the three-way electromagnetic valve is communicated with the outside through a one-way silica gel valve;

the timer is configured to drive the peristaltic pump to inflate the expansion core to a blocking state at the start of a preset blocking time and close the three-way solenoid valve, and to communicate the expansion core with the outside through the three-way solenoid valve at the end of the blocking time to return the expansion core to the non-blocking state.

In some embodiments of the present disclosure, a portion of the expansion core outside of the annular channel is fitted with a strain gauge;

a state display module is coupled to the strain gauge;

the state display module includes:

a bridge unit configured to form a bridge circuit with the strain gauge, the bridge circuit outputting an analog signal according to blood flow in a blood vessel when the expansion core is in the blocked state,

a second amplification circuit configured to amplify the analog signal,

a conversion circuit configured to convert the amplified analog signal into a digital signal;

the processing circuit is configured to output the monitoring signal mapping the blocking state according to the digital signal;

the monitoring signal is displayed, and the display displays that the expansion core is in a blocking state or a non-blocking state according to the monitoring signal.

In view of the above, other features and advantages of the embodiments of the present invention will become apparent from the following detailed description of the disclosed exemplary embodiments, which proceeds with reference to the accompanying drawings.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a block diagram of a pipe clamp and clamp according to an embodiment;

FIG. 2 is a block diagram of an embodiment tube clamp;

FIG. 3 is a block diagram of a fixture according to an embodiment;

FIG. 4 is a partial schematic view of an embodiment of a timing block;

FIG. 5 is a partial schematic view of an embodiment of a timing block;

FIG. 6 is a block diagram of an embodiment strain gage;

FIG. 7 is a schematic diagram illustrating operation of the pipe clamp and clamp of the embodiment;

FIG. 8 is a block diagram of an embodiment of a timer blocking apparatus optimization.

The attached drawings are marked as follows:

100. a blood vessel; 200. a pipe clamp; 210. an upper plate; 211. an upper groove; 220. a lower plate; 221. a lower groove; 300. a clamp; 310. a first clamping bar; 311. an upper protrusion; 320. a second clamping bar; 321. a lower protrusion; 330. an elastic member; 400. an expanded core; 500. a peristaltic pump; 521. an electromagnetic valve; 522. a three-way electromagnetic valve; 600. a strain gauge; 700. a timer; 710. a housing; 720. a circuit board; 730. a timing key; 741. starting the LED lamp group; 742. ending the LED lamp group; 800. one-way silica gel valve.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, as disclosed in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

This embodiment discloses a timing block device that can partially or completely block the flow of blood through a blood vessel 100. The device surrounds the expansion core 400 around the outer edge of the blood vessel 100 by the cooperation of the tube clamp 200 and the clamp 300.

Referring to fig. 1 and 2, the pipe clamp 200 of the present embodiment is an annular ring penetrating through the middle portion and made of a rubber material with good resilience; meanwhile, the pipe clamp 200 is opened, and a plurality of enclosing plates are arranged at intervals on two sides, so that the annular ring is configured as a C-shaped clamp. The opening can be forced to open and remain open when the conduit clamp 200 is subjected to an external force such as that applied by the clamp 300; when the external force is removed, the opening can automatically return to the initial closed state.

The tube clamp 200 surrounds the outer edge of the blood vessel 100 in the closed state; and an annular channel is formed around vessel 100 between the C-clip and vessel 100. Meanwhile, the pipe clamp 200 is opened with a core inlet into which the expansion core 400 can enter.

Referring to fig. 2 and 3, the pipe clamp 200 has an upper plate 210 fixed to both sides of the upper end adjacent to the opening, and an upper groove 220 fixed to the lower end. The upper plate 210 is provided with a through upper groove 211, and the upper plate 220 is provided with a through lower groove 221. The clamp 300 is a combination of two shear clamps 300, the shear clamp 300 including a first clamping bar 310 and a second clamping bar 320. The first clamping bar 310 and the second clamping bar 320 intersect and are connected by a hinge shaft at the intersection position. One end of the first clamping bar 310 is configured with an upper clamp. The same end of the second clamping bar 320 opposite the upper jaw is configured with a lower jaw. The upper jaw has an upper protrusion 311 engaged with the upper groove 211 located at the same side as the pipe clamp 200, and the lower jaw has a lower protrusion 321 engaged with the lower groove 221 located at the same side as the pipe clamp 200. Then applying force to the two shear clamps 300 after the two shear clamps 300 are respectively engaged with the upper and lower grooves 211 and 221 on the same side of the tube clamp 200 by the upper and lower protrusions 311 and 321 enables the opening to be maintained in an open state for placing the blood vessel 100 on the tube clamp 200, and the expansion core 400 to be inserted along the inlet core and filled in the annular channel.

Referring to fig. 4, after the expansion core 400 is filled in the annular passage, if the end of the expansion core 400 located outside the annular passage is connected to the peristaltic pump 500, the gas is expanded. The inflated expansion core 400 can squeeze the blood vessel 100, gradually reduce the cross-sectional area inside the blood vessel 100 until the inside of the blood vessel 100 is completely blocked, and solve the problem that the blood vessel 100 at the operated part continuously overflows a large amount of blood to influence the operation process.

Referring to fig. 4, the expansion core 400 of the present embodiment is connected to the peristaltic pump 500 through the solenoid valve 521. The operating state of peristaltic pump 500 is controlled by a timer 700. The timer 700 can drive the peristaltic pump 500 to inflate the expandable core 400 at the beginning of a preset blocking time, so that the expandable core 400 is expanded to a blocking state, and the expandable core 400 can be extruded to block the blood flow flowing in the blood vessel 100 after being expanded to the blocking state; at the same time, the timer 700 drives the peristaltic pump 500 to deflate at the end of the occlusion time, so that the inflation core 400 returns to the non-occlusion state, and the occlusion of the blood flow in the blood vessel 100 is released.

The timer 700 includes a housing 710, the housing 710 having a plurality of timing buttons 730 and a circuit board 720 coupled to the timing buttons 730.

The time button 730 can output level signals representing different blocking times when pressed. The circuit board 720 is configured with a first amplification circuit, a processing circuit, and a driving circuit.

The first amplifying circuit is composed of an amplifier and is capable of scaling the level signal to an amplified signal.

The processing circuit is a single chip microcomputer and can determine the time length of the selected blocking time according to the amplified signals corresponding to the different timing keys 730; and outputting a forward starting signal at the beginning of the blocking time, and controlling the solenoid valve 521 to start in a forward direction; at the end of the blocking time, the control solenoid valve 521 is opened and a reverse start signal is output.

The driving circuit is a motor driving circuit and is used for controlling a pump of the peristaltic pump 500, and specifically, the peristaltic pump 500 is started in the positive direction according to a positive starting signal, so that the expansion core 400 can be expanded to a blocking state; at the same time, the peristaltic pump 500 is reverse-activated in response to the reverse activation signal to return the inflatable core 400 to the non-blocking state.

Further, the timer 700 of the present embodiment includes a delay circuit and an early warning circuit.

The delay circuit is coupled between the processing circuit and the driving circuit, and is used for delaying the forward starting signal and the reverse starting signal and transmitting the forward starting signal and the reverse starting signal to the driving circuit after delaying a preset delay time.

The early warning circuit is coupled with the processing circuit, can receive forward starting signal and reverse starting signal to start the LED lamp group 741 that represents the beginning of blocking the early warning information according to the forward starting signal, start the LED lamp group 742 that represents the ending of blocking the early warning information according to the reverse starting signal.

Referring to fig. 5 and 6, in the present embodiment, a strain gauge 600 is installed at a portion of the expansion core 400 outside the annular channel, and a signal processing module is coupled to the strain gauge 600.

The strain gauge 600 of the present embodiment is configured as a C-shaped ring which is snapped on the portion of the expansion core 400 outside the tube clamp 200, so that the expansion core 400 can monitor the blood vessel 100 movement caused by the blood flow after being inflated and sealed.

The signal processing module of the present embodiment includes a bridge unit formed by a plurality of resistors mounted on the circuit board 720, a second amplifying circuit, and a converting circuit.

The bridge unit and the strain gauge 600 form a bridge circuit, and the bridge circuit deforms according to the pulsation of the blood vessel 100 after the expansion core 400 is plugged, so as to output an analog signal. The second amplifying circuit is composed of a plurality of amplifiers and is used for amplifying the analog signals. The conversion circuit is an A/D conversion circuit and is used for carrying out analog-to-digital conversion on the amplified analog signals into digital signals.

The monitoring signal of the present embodiment, which maps the blocking state, is output according to the digital signal. The monitor signal is received by a display, and the display displays the expansion core 400 in a blocking state or a non-blocking state according to the monitor signal, preventing the expansion core 400 from abnormality during the operation.

Referring to fig. 7, after the pipe clamp 200 is installed, the clamp 300 of the present embodiment can be quickly separated from the pipe clamp 200. In the embodiment, an elastic member 330, such as a torsion spring or other rubber column with good resilience, is connected between the hinge shaft positions of the shear clamp. Then, after the blood vessel 100 is placed in the tube clamp 200 and the force applied to the tube clamp 200 by the clamp 300 is removed, the two first clamping bars 310 may be moved toward each other with respect to the other end portions of the upper clamp head and the two second clamping bars 320 may be moved toward each other with respect to the other end portions of the lower clamp head, so that the engaging relationship between the upper protrusion 311 and the upper groove 211 and the engaging relationship between the lower protrusion 321 and the lower groove 221 are released, and the clamp 300 may be separated from the tube clamp 200.

Referring to fig. 2, the pipe clamp 200 of the present embodiment preferably has a plurality of elongated holes around the circumference thereof for communicating the annular channel with the outside; the above enables the operator to observe the plurality of elongated holes when inserting the expansion core 400 into the annular channel, for obtaining whether the expansion tube is filled in place in the annular channel.

Further, the bounding wall of this embodiment comprises a plurality of radiuses that reduce in proper order and the arc strip of interval arrangement, and the arc strip is made by the better rubber material of resilience. Then when the tube clamp 200 is placed into the blood vessel 100, the blood vessel 100 will be abutted by the outermost arcuate strips of the plurality of webs, allowing an annular passage to be formed between the tube clamp 200 and the blood vessel 100.

Further, please refer to fig. 8; the expansion core 400 of this embodiment is coupled to the peristaltic pump 500 by a three-way solenoid valve 522. An inlet of the three-way electromagnetic valve 522 is connected with the peristaltic pump 500, an outlet is connected with the expansion core 400, and the other outlet is communicated with the outside through the one-way silica gel valve 800. The timer 700 closes the three-way solenoid valve 522 at the beginning of the blocking time and drives the peristaltic pump 500 to inflate the expansion core 400 to the blocking state; at the end of the blocking time, the three-way solenoid valve 522 is controlled to communicate the expansion core 400 with the outside for returning the expansion core 400 to a non-blocking state close to the external air pressure.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. A timing blocking device is characterized in that,

the device comprises:

the clamp comprises a pipe clamp and a clamping device, wherein the pipe clamp is configured to be in an opening state and a closing state, the pipe clamp is configured to be clamped in a blood vessel in the closing state and forms an annular channel surrounding the blood vessel with the blood vessel, the pipe clamp is configured to be provided with a core inlet communicated with the annular channel, and the pipe clamp is configured to be separated from the blood vessel in the opening state;

a clamp configured to be detachably connected to the pipe clamp, and configured to switch the pipe clamp between the open state and the closed state when connected to the pipe clamp;

an expansion core configured such that when the pipe clamp is in the closed state, one end fills the annular passage through the core inlet and the other end is connected to a fluid pump;

a peristaltic pump configured to communicate with the inflation core;

a timer configured to drive the peristaltic pump to inflate the inflation core to an occluded state at the beginning of a preset occlusion time, and to deflate the inflation core to a non-occluded state at the end of the occlusion time.

2. The timing block of claim 1,

the timer includes:

at least one timing key configured to output a level signal representing a preset time length when triggered;

a first amplification circuit configured to amplify the level signal into an amplified signal;

a processing circuit configured to output a forward start signal in accordance with the amplified signal and to output a reverse start signal at the end of the blocking time;

a drive circuit configured to forward activate the peristaltic pump in accordance with the forward activation signal and reverse activate the peristaltic pump in accordance with the reverse activation signal.

3. The timing block of claim 2,

the timer comprises a delay circuit and an early warning circuit;

the delay circuit is configured to delay the forward start signal and the reverse start signal;

the processing circuit is configured to start the peristaltic pump in a forward direction according to the delayed forward start signal and to start the peristaltic pump in a reverse direction according to the delayed reverse start signal;

the early warning circuit is configured to generate start blocking early warning information and end blocking early warning information according to the forward starting signal and the reverse starting signal.

4. The timing block of claim 3,

the pipe clamp is made of elastic material and penetrates through the middle part, and the pipe clamp is provided with an opening;

the clamp is configured to apply a force to open or release the opening while maintaining the opening normally closed when connected to the conduit clamp.

5. The timing block of claim 4,

the pipe clamp is configured to fix an upper plate at an upper end of the opening and a lower plate at a lower end; the upper plate is configured to define an upper channel and the lower plate is configured to define a lower channel;

the clamp is configured as a first shear clamp, an upper collet of the first shear clamp is configured with an upper protrusion that is snap-fitted with the upper groove on one side, and a lower collet is configured with a lower protrusion that is snap-fitted with the lower groove on one side.

6. The timing block of claim 5,

the clamp is constructed into a symmetrical combined structure of two second shear clamps which are respectively connected to two sides of the pipe clamp; the upper chuck of the second shear clamp is provided with an upper protrusion embedded with the upper groove on the same side, and the lower chuck is provided with a lower protrusion embedded with the lower groove on the same side;

the two second shear clamps are connected through an elastic piece.

7. The timing block of claim 1,

the peristaltic pump is configured to communicate with the expansion core through a solenoid valve;

the timer is configured to drive the peristaltic pump to inflate the inflation core to a blocked state at the beginning of a preset blocking time and to reverse the solenoid valve, and to open the solenoid valve at the end of the blocking time and to drive the peristaltic pump to deflate the inflation core to the non-blocked state.

8. The timing block of claim 7,

the solenoid valve is configured as a three-way solenoid valve;

one inlet of the three-way electromagnetic valve is connected with the peristaltic pump, one outlet of the three-way electromagnetic valve is connected with the expansion core, and the other outlet of the three-way electromagnetic valve is communicated with the outside through a one-way silica gel valve;

the timer is configured to drive the peristaltic pump to inflate the expansion core to a blocking state at the start of a preset blocking time and close the three-way solenoid valve, and to communicate the expansion core with the outside through the three-way solenoid valve at the end of the blocking time to return the expansion core to the non-blocking state.

9. The timing block of claim 2,

the part of the expansion core outside the annular channel is provided with a strain gauge;

a state display module is coupled to the strain gauge;

the state display module includes:

a bridge unit configured to form a bridge circuit with the strain gauge, the bridge circuit outputting an analog signal according to blood flow in a blood vessel when the expansion core is in the blocked state,

a second amplification circuit configured to amplify the analog signal,

a conversion circuit configured to convert the amplified analog signal into a digital signal;

the processing circuit is configured to output the monitoring signal mapping the blocking state according to the digital signal;

the monitoring signal is displayed, and the display displays that the expansion core is in a blocking state or a non-blocking state according to the monitoring signal.

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