CN110338883A - Endangium strips off the suction cutting mechanism of scalpel device - Google Patents

Abstract

The invention discloses the suction cutting mechanisms that a kind of endangium strips off scalpel device, aspirating cutting mechanism includes blood plunger pump, the first air bag, twin shaft output driving portion, rotational shear component and hollow displacement screw rod, first air bag is connected to blood plunger pump, and rotational shear component is set on displacement screw rod；The present invention can cooperate with rear plugging mechanism, can form surgical instrument and realize the normal blood circulation for keeping blood vessel while operation to endangium, extend the window time of operation, reduce operating difficulty and operation risk, can also work continuously, high degree of automation.

Description

Endangium strips off the suction cutting mechanism of scalpel device

Technical field

The present invention relates to technical field of surgical instruments, the suction for stripping off scalpel device more particularly to a kind of endangium is cut Cut mechanism.

Background technique

Endarterectomy (CEA) is a kind of to prevent brain to cut off the carotid artery intima atherosclerotic plaque that thickens One of soldier therapeutic method of surgery.Existing operation method is that direct labor tightens diseased region both ends carotid artery vascular, so The carotid artery intima atherosclerotic plaque removing that will be thickened is cut afterwards to take out.Due to needing to cut off arteria carotis in this surgical procedure Blood supply, and human brain can not be resistant to ischemic environment for a long time, therefore greatly have compressed operation window phase, to doctor's hand Method proficiency and psychological quality requirement are very high, cause surgical effect undesirable；The large area incision of blood vessel is also increased simultaneously The surface of a wound causes suture time to extend, and adversely affects to patient's post-operative recovery and tourniquet.

Summary of the invention

It is an object of the invention to overcome disadvantages described above, the suction that a kind of endangium strips off scalpel device is provided Cutting mechanism.

To achieve the above object, concrete scheme of the invention is as follows:

A kind of endangium strips off the suction cutting mechanism of scalpel device, and the suction cutting mechanism includes blood plunger pump, One air bag, twin shaft output driving portion, rotational shear component and hollow displacement screw rod, the blood plunger pump are used for pump blood Into in the first air bag, first air bag is set on blood plunger pump, and is connected to blood plunger pump, the twin shaft output Driving portion is set in blood plunger pump, and one end and blood plunger pump are sequentially connected, and the rotational shear component is set in position It moves on screw rod, and is sequentially connected with the other end in twin shaft output driving portion, one end of the displacement screw rod and twin shaft output driving The other end in portion is sequentially connected, and is connected to the first air bag；

Wherein, the blood plunger pump includes pump case, plunger case and inclined-plane push shaft, and the plunger case is fixed on the one of pump case End, and the first cavity is formed between pump case, first cavity is connected to the side of the first air bag, the twin shaft output Driving portion be set to pump case in, first air bag is set in pump case, the inclined-plane push shaft activity pass through plunger case after with The one end in twin shaft output driving portion connects, and is equipped at intervals with feed pathway, one end of each feed pathway on the plunger case Activity is embedded with plunger, and the other end of each plunger is connected with piston shoes, the inclined-plane top of the piston shoes and inclined-plane push shaft It leans on, is equipped on the first check valve and plunger sidewall in each plunger and is equipped at intervals with inlet opening, first check valve is used Second one-way valve, institute are equipped in the other end of the conducting and blocking of realizing inlet opening and feed pathway, each feed pathway Second one-way valve is stated for realizing the conducting and blocking of feed pathway and the first cavity.

Wherein, the rotational shear component include cutter fixing seat, discoid inner cutter, the ring disk shape outer cut, interior Gear ring, transmission gear and inner edge drive gear, the other end of the cutter fixing seat insertion pump case, and fix and connect with pump case It is connected together, one end of the transmission gear passes through a main driving gear and twin shaft output driving portion after passing through cutter fixing seat The other end transmission connection, the outer cut one end insertion cutter fixing seat in, the ring gear is fixed on the one of outer cut On the inner wall at end, the other end of the transmission gear is engaged with ring gear, and the inner cutter is set in one end of displacement screw rod, institute One end that inner edge driving geared sleeve is located at inner cutter is stated, the inner edge driving gear is connected by two rudder gears and ring gear transmission It connects.

Wherein, the periphery of the outer cut and inner cutter is extended with blade towards rear plugging mechanism direction interval.

Wherein, one end of the displacement screw rod is connected with a preceding shunt shaft after passing through cutter fixing seat, shunts before described Axis connection has the second retractable connecting tube, and the other end of second retractable connecting tube is connected to the other side of the first air bag.

The invention has the benefit that compared with prior art, the present invention can be formed by cooperating with rear plugging mechanism Surgical instrument aspirates the cooperation of cutting mechanism and rear plugging mechanism, and then blood vessel is kept while performing the operation to endangium Normal blood circulation extends the window time of operation, reduces operating difficulty and operation risk, can also work continuously, and automates journey Degree is high.

Detailed description of the invention

Fig. 1 is the perspective view that the endangium that the present invention is formed with rear plugging mechanism strips off scalpel device；

Fig. 2 is the cross-sectional view that the endangium that the present invention is formed with rear plugging mechanism strips off scalpel device；

Fig. 3 is the partial enlargement diagram in Fig. 2 at I；

Fig. 4 is the partial enlargement diagram in Fig. 2 at II；

Fig. 5 is the decomposition diagram of the present invention with the blood plunger pump of rear plugging mechanism composition；

Fig. 6 is the decomposition diagram of the present invention with the rotational shear component of rear plugging mechanism composition；

Fig. 7 be will be that the present invention and the endangium of rear plugging mechanism composition strip off use state in scalpel device implantable intravascular Figure；

Description of symbols: 1- aspirates cutting mechanism；11- blood plunger pump；111- pump case；112- plunger case；1121- feed liquor Channel；The inclined-plane 113- push shaft；The first cavity of 114-；115- plunger；1151- inlet opening；116- piston shoes；The first check valve of 117-； 118- second one-way valve；The first air bag of 12-；13- twin shaft output driving portion；14- rotational shear component；141- cutter fixing seat； 142- inner cutter；143- outer cut；144- ring gear；145- transmission gear；146- inner edge drives gear；147- rudder gear；15- It is displaced screw rod；The main driving gear of 16-；Shunt shaft before 17-；The second retractable connecting tube of 18-；Plugging mechanism after 2-；This is blocked after 21- Body；The second air bag of 22-；Shunt shaft after 23-；24- pressure reducing valve；The first retractable connecting tube of 25-；26- overflow valve.

Specific embodiment

The present invention is described in further detail in the following with reference to the drawings and specific embodiments, is not reality of the invention It applies range and is confined to this.

The present invention proposes that a kind of endangium strips off the suction cutting mechanism of scalpel device, cooperates with rear plugging mechanism, can To form surgical instrument, by then endangium being stripped off in scalpel device implantable intravascular to diseased region blood vessel partial cut, As shown in fig. 7, can be removed to lesion vessels inner membrance, it can also be achieved and work continuously, and then operation window phase can be extended, Substantially reduce operating difficulty and operation risk.

Specifically, as shown in Figures 1 to 7, a kind of suction that endangium strips off scalpel device described in the present embodiment is cut Mechanism is cut, is cooperated with rear plugging mechanism, surgical instrument, including suction cutting mechanism 1 and rear plugging mechanism 2 can be formed, it is described Aspirate cutting mechanism 1 include blood plunger pump 11, the first air bag 12, twin shaft output driving portion 13, rotational shear component 14 and in Empty displacement screw rod 15, the blood plunger pump 11 enter in the first air bag 12 for pump blood, 12 sets of first air bag It is located on blood plunger pump 11, and is connected to blood plunger pump 11, twin shaft output driving portion 13 is set to blood plunger pump 11 Interior, and one end and blood plunger pump 11 are sequentially connected, the rotational shear component 14 is set on displacement screw rod 15, and with it is double The other end in axis output driving portion 13 is sequentially connected, one end of the displacement screw rod 15 and the other end in twin shaft output driving portion 13 Transmission connection, and be connected to the first air bag 12；Plugging mechanism 2 includes rear plugging ontology 21, the second air bag 22, rear shunting after described Axis 23 and pressure reducing valve 24, the rear plugging ontology 21 are set in the other end of displacement screw rod 15, and second air bag 22 is sheathed on Afterwards in plugging ontology 21, the rear shunt shaft 23 is fixed on the other end end of displacement screw rod 15, and the rear shunt shaft 23 is also logical It crosses the first retractable connecting tube 25 to be connected to the second air bag 22, the quantity of first retractable connecting tube 25 is 3, and is equidistantly arranged Cloth, the pressure reducing valve 24 are connected to the second air bag 22, and are located at rear plugging ontology 21 close to the side of rear shunt shaft 23, and described the Effective contact area of two air bags 22 and vascular wall is greater than effective contact area of the first air bag 12 and vascular wall, and the twin shaft is defeated Driving portion 13 uses twin shaft output motor out.

In use, after endangium strips off scalpel device (hereinafter referred to as scalpel device) intravascular notch implantable intravascular, and Suction cutting mechanism 1 is set to be located at blood updrift side, rear plugging mechanism 2 is located at blood downstream direction, is placed into scalpel device Behind designated position, twin shaft output motor drive blood plunger pump 11 work, in the future to blood pressurization be pumped to the first air bag 12 Interior, after the first air bag 12 is full of by high pressure blood, diameter increases and withstands vascular wall, to block the upstream of blood vessel；It is high Pressure blood is flowed out from the first air bag 12, and is flowed into the hollow channel of displacement screw rod 15, after then flowing into shunt shaft 23, is passed through Shunt shaft 23 and the first retractable connecting tube 25 afterwards are flowed into the second air bag 22, are full of to the second air bag 22, push up the second air bag 22 Firmly vascular wall, to block the downstream of blood vessel；After blood enters the second air bag 22, it is gradually filled with the second air bag 22, simultaneously Under blood pressure effect, blood is flowed out by pressure reducing valve 24, and then flows into blood vessels downstream, to form blood vessel upstream and blood vessels downstream Connection, realize the normal circulation of blood vessel；After the completion of blood vessel upstream and blood vessels downstream all block, in 12 He of the first air bag A closed chamber is formed between second air bag 22, simultaneously because effective contact area of second air bag 22 and vascular wall It is rear to block when twin shaft output motor drives displacement screw rod 15 to rotate greater than effective contact area of the first air bag 12 and vascular wall Mechanism 2 will be remain stationary, and make entirely to aspirate cutting mechanism 1 under the drive of displacement screw rod 15, towards the direction of rear plugging mechanism 2 It is mobile, and use the first retractable connecting tube 25 to be connected to the second air bag 22 and rear shunt shaft 23, and then ensure that displacement 15 energy of screw rod It is enough to be moved under the drive of twin shaft output motor, while rotational shear component 14 turns under the drive of twin shaft output motor It is dynamic, and then the endangium of protrusion is cut in closed chamber, the endangium of protrusion and blood vessel are removed, Reduce operating difficulty and infection risk.

The cooperation of the suction cutting mechanism 1 and rear plugging mechanism 2 of the present embodiment, and then while performing the operation to endangium The normal blood circulation for keeping blood vessel extends the window time of operation, reduces operating difficulty and operation risk, can also continuously make Industry, high degree of automation.

On the basis of based on the above embodiment, further, as shown in figure 4, plugging mechanism 2 further includes overflow valve after described 26, the overflow valve 26 be set to rear shunt shaft 23 in, when blood pressure is excessive, blood enter rear shunt shaft 23 after can squeeze it is excessive Valve 26 is flowed, and blood vessels downstream is flowed by overflow valve 26, decompression is realized, in order to protect the second air bag 22.

On the basis of based on the above embodiment, further, as shown in Figure 3 and Figure 5, the blood plunger pump 11 includes pump Shell 111, plunger case 112 and inclined-plane push shaft 113, the plunger case 112 are fixed on one end of pump case 111, and and pump case The first cavity 114 is formed between 111, first cavity 114 is connected to the side of the first air bag 12, and the twin shaft output is driven Dynamic portion 13 is set in pump case 111, and first air bag 12 is set in pump case 111, and 113 activity of inclined-plane push shaft passes through It is connect after plunger case 112 with the one end in twin shaft output driving portion 13, six feed pathways is equipped at intervals on the plunger case 112 1121, the equal activity in one end of six feed pathways 1121 is embedded with plunger 115, and the other end of each plunger 115 is living Dynamic to be connected with piston shoes 116, the inclined-plane of the piston shoes 116 and inclined-plane push shaft 113 abuts against, and is equipped with first in each plunger 115 Be equipped at intervals with three inlet openings 1151 on 115 side wall of check valve 117 and plunger, first check valve 117 for realizing into The other end of the conducting and blocking of fluid apertures 1151 and feed pathway 1121, each feed pathway 1121 is equipped with second one-way valve 118, the second one-way valve 118 for realizing feed pathway 1121 and the first cavity 114 conducting and blocking；Specifically, double Axis output motor drives inclined-plane push shaft 113 to rotate, and inclined-plane push shaft 113 successively pushes each plunger 115 by piston shoes 116, that is, has 115 return of plunger, also has plunger 115 to be pressed down, and when plunger 115 is pressed down, the pressure in feed pathway 1121 increases, thus Second one-way valve 118 can be opened, is connected to feed pathway 1121 with the first cavity 114, when inclined-plane push shaft 113 does not push the column When filling in 115, the plunger 115 then return under pressure action reduces the pressure in feed pathway 1121, at this time blood by into Fluid apertures 1151 enters in plunger 115, and opens the first check valve 117, flows into feed pathway 1121, and second one-way valve 118 It is in close state, when then inclined-plane push shaft 113 pushes the plunger 115 again, then closes the first check valve 117, second is single It is opened to valve 118, the high pressure blood in feed pathway 1121 enters in the first cavity 114 at this time, and is flowed by the first cavity 114 Enter in the first air bag 12, in the case where the continuous promotion plunger 115 of inclined-plane push shaft 113 moves back and forth, is gradually filled in the first air bag 12 High pressure blood, and then the diameter of the first air bag 12 is made constantly to become larger, to withstand vascular wall, realize the blood for blocking upstream； Blood can flow into displacement screw rod 15 after entering the first air bag 12 simultaneously, connect then in turn through rear shunt shaft 23, first is flexible Adapter tube 25 enters in the second air bag 22, carries out the second air bag 22 full of high pressure blood, and then the second air bag 22 is made to block blood Pipe downstream, for slot milling of performing the operation；After blood enters the second air bag 22, pressure reducing valve 24 is opened under pressure action, is then flowed into Blood vessels downstream ensures the normal circulation of vessel inner blood to realize the blood circulation of blood vessel upstream and blood vessels downstream.

On the basis of based on the above embodiment, further, as shown in Figure 3 and Figure 6, the rotational shear component 14 includes Cutter fixing seat 141, inner cutter 142, outer cut 143, ring gear 144, transmission gear 145 and inner edge drive gear 146, described Cutter fixing seat 141 is embedded in the other end of pump case 111, and is fixed together with pump case 111, the transmission gear 145 one end is connected after passing through cutter fixing seat 141 by the other end transmission of a main driving gear 16 and twin shaft output motor It connects, in one end insertion cutter fixing seat 141 of the outer cut 143, the ring gear 144 is fixed on one end of outer cut 143 Inner wall on, the other end of the transmission gear 145 is engaged with ring gear 144, the inner cutter 142 be set in displacement screw rod 15 One end, inner edge driving gear 146 is set in one end of inner cutter 142, and the inner edge driving gear 146 passes through two rudders Gear 147 and ring gear 144 are sequentially connected；When work, twin shaft output motor drives main driving gear 16 to rotate, main driving gear 16 band nutating gears 145 rotate, and transmission gear 145 drives ring gear 144 to rotate, and ring gear 144 drives 143 turns of outer cut It is dynamic, while ring gear 144 is rotated by two rudder gears 147 of drive, so that inner edge driving gear 146 is driven to rotate, Jin Ertong When drive inner cutter 142 and displacement screw rod 15 to rotate, inner cutter 142 and the cooperation of outer cut 143 carry out the endangium of protrusion Cutting, and be displaced screw rod 15 and inner cutter 142 and outer cut 143 is driven to be axially moveable, to realize to blood vessel diseased region Operation, the present embodiment drives 146, two rudders of gear by twin shaft output motor and transmission gear 145, ring gear 144, inner edge The planetary gear construction that gear 147 forms is driven, and is realized multi-load centralized driving, is reduced volume, to reduce hand Art wound area, in the present embodiment, the outer cut 143 is in the ring disk shape, and the inner cutter 142 is in the form of annular discs, more conducively and blood Inside pipe wall cooperation, convenient for cutting off the endangium of protrusion.

On the basis of based on the above embodiment, further, the equal direction of periphery of the outer cut 143 and inner cutter 142 2 direction interval of plugging mechanism is extended with blade afterwards, and the quantity of blade is 22, is conducive to cooperate with blood vessel, is conducive to operation, mentions The endangium efficiency of height excision protrusion, shortens operating time.

On the basis of based on the above embodiment, further, as shown in figure 3, one end of the displacement screw rod 15 passes through and cuts It is connected with a preceding shunt shaft 17 after knife fixing seat 141, the preceding shunt shaft 17 is connected with the second retractable connecting tube 18, and described The other end of two retractable connecting tubes 18 is connected to the other side of the first air bag 12；Specifically, the quantity of the second retractable connecting tube 18 It is 3, and equidistantly distributed, when operation, high pressure blood flows into the second retractable connecting tube 18 from the first air bag 12, passes through second Enter in preceding shunt shaft 17 after retractable connecting tube 18, then enter back into displacement screw rod 15, to realize in the first air bag 12 High pressure blood is transitioned into displacement screw rod 15.

The above is only a preferred embodiment of the invention, therefore all according to structure described in present patent application range It makes, the equivalent change or modification that feature and principle are done, in the protection scope of present patent application.

Claims (7)

1. the suction cutting mechanism that a kind of endangium strips off scalpel device, which is characterized in that it is characterized in that, the suction is cut Cutting mechanism (1) includes blood plunger pump (11), the first air bag (12), twin shaft output driving portion (13), rotational shear component (14) With hollow displacement screw rod (15), the blood plunger pump (11) enters in the first air bag (12) for pump blood, and described the One air bag (12) is set on blood plunger pump (11), and is connected to blood plunger pump (11), twin shaft output driving portion (13) it is set in blood plunger pump (11), and one end and blood plunger pump (11) are sequentially connected, the rotational shear component (14) it is set in displacement screw rod (15), and is sequentially connected with the other end in twin shaft output driving portion (13), the displacement screw rod (15) other end of one end and twin shaft output driving portion (13) is sequentially connected, and is connected to the first air bag (12).

2. the suction cutting mechanism that a kind of endangium according to claim 1 strips off scalpel device, which is characterized in that institute Stating blood plunger pump (11) includes pump case (111), plunger case (112) and inclined-plane push shaft (113), and the plunger case (112) is solid It is scheduled on one end of pump case (111), and is formed with the first cavity (114) between pump case (111), first cavity (114) it being connected to the side of the first air bag (12), twin shaft output driving portion (13) is set in pump case (111), and described the One air bag (12) is set on pump case (111), and it is defeated with twin shaft afterwards that inclined-plane push shaft (113) activity passes through plunger case (112) One end of driving portion (13) connects out, is equipped at intervals with feed pathway (1121) on the plunger case (112), and each feed liquor is logical One end activity in road (1121) is embedded with plunger (115), and the other end of each plunger (115) is connected with piston shoes (116), the piston shoes (116) and the inclined-plane of inclined-plane push shaft (113) abut against, and it is unidirectional that first is equipped in each plunger (115) Be equipped at intervals with inlet opening (1151) on valve (117) and plunger (115) side wall, first check valve (117) for realizing into The other end of the conducting and blocking of fluid apertures (1151) and feed pathway (1121), each feed pathway (1121) is equipped with second Check valve (118), the second one-way valve (118) for realizing feed pathway (1121) and the first cavity (114) conducting with It blocks.

3. the suction cutting mechanism that a kind of endangium according to claim 2 strips off scalpel device, which is characterized in that institute State rotational shear component (14) include cutter fixing seat (141), discoid inner cutter (142), the ring disk shape outer cut (143), ring gear (144), transmission gear (145) and inner edge driving gear (146), cutter fixing seat (141) the insertion pump The other end of shell (111), and be fixed together with pump case (111), one end of the transmission gear (145), which passes through, cuts Knife fixing seat (141) is sequentially connected by the other end of main driving gear (16) and twin shaft output driving portion (13) afterwards, institute It states in one end insertion cutter fixing seat (141) of outer cut (143), the ring gear (144) is fixed on the one of outer cut (143) On the inner wall at end, the other end of the transmission gear (145) is engaged with ring gear (144), and the inner cutter (142) is arranged in place The one end of screw rod (15) is moved, inner edge driving gear (146) is set in one end of inner cutter (142), the inner edge sliding tooth (146) are taken turns to be sequentially connected by two rudder gears (147) and ring gear (144).

4. the suction cutting mechanism that a kind of endangium according to claim 3 strips off scalpel device, which is characterized in that institute The periphery for stating outer cut (143) and inner cutter (142) is extended with blade towards rear plugging mechanism (2) direction interval.

5. the suction cutting mechanism that a kind of endangium according to claim 3 strips off scalpel device, which is characterized in that institute One end that rheme moves screw rod (15) is connected with a preceding shunt shaft (17), the preceding shunt shaft after passing through cutter fixing seat (141) (17) it is connected with the second retractable connecting tube (18), the other end of second retractable connecting tube (18) is another with the first air bag (12) Side connection.

6. the suction cutting mechanism that a kind of endangium according to claim 3 strips off scalpel device, which is characterized in that institute One end that rheme moves screw rod (15) is connected with a preceding shunt shaft (17), the preceding shunt shaft after passing through cutter fixing seat (141) (17) it is connected with the second retractable connecting tube (18), the other end of second retractable connecting tube (18) is another with the first air bag (12) Side connection.

7. the suction cutting mechanism that a kind of endangium according to claim 3 strips off scalpel device, which is characterized in that institute One end that rheme moves screw rod (15) is connected with a preceding shunt shaft (17), the preceding shunt shaft after passing through cutter fixing seat (141) (17) it is connected with the second retractable connecting tube (18), the other end of second retractable connecting tube (18) is another with the first air bag (12) Side connection.