CN217118539U - Pushing assembly and control system of interventional surgical instrument - Google Patents

Abstract

The utility model discloses a propelling movement subassembly and control system who intervenes surgical instruments, wherein, the propelling movement subassembly includes: the mounting base, action wheel, mounting bracket to and from the driving wheel. The mounting seat is provided with an elongated object guide groove, a first accommodating space and a second accommodating space, the first accommodating space is provided with a first open side communicated with a guide channel of the elongated object guide groove, the second accommodating space is provided with a second open side communicated with the guide channel of the elongated object guide groove, and a third open side communicated with the outside; the driving wheel is rotatably arranged in the first accommodating space and protrudes along the first open lateral direction guide channel; the mounting frame comprises a mounting part and a handheld part which are connected with each other, the mounting frame is rotatably inserted into the second accommodating space, and the handheld part extends to the outside along the third open side; the driven wheel is rotatably arranged at one end, far away from the handheld part, of the mounting part, and protrudes along the second open lateral guide channel when clamping the elongated object, so that the purpose of pushing the elongated object is achieved.

Description

Pushing assembly and control system of interventional surgical instrument

Technical Field

The utility model relates to an intervene surgical instruments technical field, in particular to propelling movement subassembly and control system who intervenes surgical instruments.

Background

In the related technology, a doctor inserts a sheath into a specific blood vessel for operation through blood vessel puncture to establish an entrance of an internal channel and an external channel for interventional therapy, inserts a catheter and a guide wire into a specific focus position through the sheath, then carries out therapy or places a stent and the like, and the rear end of the catheter is connected with a Y valve to facilitate the injection of liquid for examination or therapy, such as contrast fluid and the like. At present, an execution device of an interventional operation has been applied to the interventional operation, but some disadvantages exist, for example, the taking and the placing of long and thin objects such as a catheter or a guide wire are inconvenient, and the operation effect is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a propelling movement subassembly, the manual seal wire of getting is convenient for.

The embodiment of the utility model provides a pair of propelling movement subassembly, include:

the mounting seat is provided with an elongated object guide groove, a first accommodating space and a second accommodating space, wherein the first accommodating space is provided with a first open side communicated with a guide channel of the elongated object guide groove, and the second accommodating space is provided with a second open side communicated with the guide channel of the elongated object guide groove and a third open side communicated with the outside;

the driving wheel is rotatably arranged in the first accommodating space and protrudes to the guide channel along the first open side;

the mounting frame comprises a mounting part and a handheld part which are connected with each other, the mounting frame is rotatably inserted into the second accommodating space, and the handheld part extends to the outside along the third open side;

the driven wheel is rotatably arranged at one end, far away from the handheld part, of the mounting part, and protrudes to the guide channel along the second open side when clamping the elongated object;

when the mounting rack rotates forwards and reversely, the driven wheel is far away from or close to the driving wheel, so that the clamping space between the driving wheel and the driven wheel is suitable for releasing or clamping elongated objects.

Use the embodiment of the utility model provides a technical scheme, forward or reverse promotion handheld portion, the relative mounting bracket of mounting bracket rotates, drives to install and keeps away from the action wheel at the installation department from the driving wheel, action wheel and from the centre gripping space grow between the driving wheel to be convenient for place the action wheel with elongated object and follow between the driving wheel, or follow the action wheel and take out elongated object from between the driving wheel. The arrangement of the handheld part improves the convenience of taking and placing the slender objects.

Preferably, the pushing assembly further comprises:

the elastic piece, the elastic piece set up in the second accommodation space, elastic piece one end with the mount pad is connected, the other end with the installation department is connected under the effect of elastic piece, the action wheel with the centre gripping space between the follow driving wheel is suitable for pressing from both sides tight elongated object.

Preferably, the pushing assembly further comprises:

and the elastic piece mounting hole is communicated with the second accommodating space and the outside and is suitable for the elastic piece to penetrate through so as to be installed in the second accommodating space.

Preferably, the mounting seat is provided with a connecting hole which transversely penetrates through the elastic piece mounting hole;

the push assembly further comprises: the connecting rod is inserted into the connecting hole, and at least part of the connecting rod penetrates through the elastic piece mounting hole to limit the elastic piece from being separated from the elastic piece mounting hole.

Preferably, the elastic part is a spring, the mounting part is provided with a spring limiting hole, the bottom surface of the spring limiting hole is provided with a limiting bulge, and one end of the spring is inserted into the spring limiting hole between the limiting bulges.

Preferably, the joint of the mounting part and the hand-held part is connected with the top surface and the bottom surface of the second accommodating space through a rotating shaft.

Preferably, the hole on the bottom surface of the second accommodating space for installing the rotating shaft is a through hole.

Preferably, the first accommodating space has a fourth open side, and the pushing assembly further includes a pressing cover, which is connected to the mounting seat and covers the fourth open side, so as to press-mount the driving wheel in the first accommodating space.

Preferably, the pushing assembly further comprises:

the cover plate is provided with a limiting lug;

the mounting seat is provided with a slender object limiting groove, and the limiting lug is inserted into the slender object limiting groove so as to limit the clamped slender object to be separated from the slender object guide groove.

In a second aspect, embodiments of the present invention provide a control system for an interventional surgical instrument, including: the propelling movement subassembly, the propelling movement subassembly be any one of the aforesaid propelling movement subassembly.

The control system of the interventional surgical instrument comprises the pushing assembly, so that the control system of the interventional surgical instrument at least has the same technical effect as the pushing assembly, and the details are not repeated herein.

Drawings

Fig. 1 is a schematic view of a push assembly according to some embodiments of the present invention.

Fig. 2 is a schematic structural diagram of another view angle of the pushing assembly according to some embodiments of the present invention.

Fig. 3 is a schematic structural view of the pushing assembly according to some embodiments of the present invention after the mounting seat is hidden.

Fig. 4 is a schematic view of a mounting seat of the pusher assembly according to some embodiments of the present invention.

Fig. 5 is a schematic view of another perspective of a mount in a pusher assembly according to some embodiments of the present invention.

Fig. 6 is a schematic structural view of a bottom portion of a mounting seat in a pushing assembly according to some embodiments of the present invention.

Fig. 7 is a schematic diagram of a control system for an interventional surgical device in accordance with certain embodiments of the present invention.

Fig. 8 is a schematic diagram of a drive cartridge in a control system for an interventional surgical instrument according to some embodiments of the present invention.

Reference numerals:

a push assembly 1;

the mounting seat 11, the elongated object guide groove 111, the first accommodating space 112, the second accommodating space 113, the elastic element mounting hole 114, the connecting hole 115, the elongated object limiting groove 116, the first open side 117, the second open side 118, the third open side 119, the first rotating shaft through hole 120, the fourth open side 121, and the second rotating shaft through hole 122;

a driving wheel 12;

the mounting frame 13, the mounting part 131, the handheld part 132, the spring limiting hole 1311 and the limiting protrusion 1312;

driven wheel 14, elastic piece 15, connecting rod 16, gland 17;

the device comprises a driving box base 2, a catheter driving device mounting position 21, a guide wire driving device mounting position 22, a pushing component mounting position 23, a guide wire guide groove 24 and a guide wire guide groove 25;

the guide wire driving device 3, the guide wire driving device 4, the outer box 41, the first gear 42, the second gear 43, the outer box cover 44, the inner driving box 45, the cover plate 5 and the limit bump 51.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

Referring to fig. 1 and 2, an embodiment of the present invention provides a push assembly 1, where the push assembly 1 includes: a mounting base 11, a driving wheel 12, a mounting frame 13 and a driven wheel 14.

The mounting frame 13 is rotatably mounted on the mounting base 11, the driven wheel 14 is rotatably mounted on the mounting frame 13, and the driving wheel 12 is rotatably mounted on the mounting base 11. The driven wheel 14 can be close to or far away from the driving wheel 12 by rotating the mounting frame 13, so that the clamping space between the driving wheel 12 and the driven wheel 14 is reduced to clamp the elongated object, or the clamping space is enlarged to release the elongated object, and the elongated object can be very conveniently taken and placed. Under the action of external driving force, the driving wheel 12 drives the driven wheel 14 to rotate, so that the clamped slender object is driven to move forwards or backwards.

It should be noted that the slender object mentioned herein refers to a size (such as a circumferential length, a radial length, a length from one side or more sides of a cross section, or a length from a central region to a point on a boundary of a cross section, etc.) describing a thickness thereof, the former is smaller than the latter, and the latter is larger than the former, such as a catheter, a guide wire used in an interventional operation, a guide wire of a therapeutic stent, or the like.

Specifically, the mounting seat 11 is provided with an elongated object guide groove 111, a first accommodating space 112 and a second accommodating space 113, the first accommodating space 112 and the second accommodating space 113 are respectively arranged at two sides of the elongated object guide groove 111, the first accommodating space 112 has a first open side 117 communicating with the guide passage of the elongated object guide groove 111, the second accommodating space 113 has a second open side 118 communicating with the guide passage of the elongated object guide groove 111, and a third open side 119 communicating with the outside. The driving wheel 12 is rotatably installed in the first accommodating space 112 and protrudes to the guide passage along the first open side 117; the mounting frame 13 includes a mounting portion 131 and a holding portion 132 connected to each other, the mounting frame 13 is rotatably inserted into the second receiving space 113, and the holding portion 132 extends to the outside along the third open side 119; the driven wheel 14 is rotatably mounted on one end of the mounting portion 131 away from the holding portion 132 and projects along the second open side 118 toward the guide passage when holding the elongated object; when the mounting frame 13 rotates forwards and backwards, the driven wheel 14 is far away from or close to the driving wheel 12, so that the clamping space between the driving wheel 12 and the driven wheel 14 is suitable for releasing or clamping the elongated object.

The driving pulley 12 is protruded to the guide passage along the first open side 117, and the driven pulley 14 is protruded to the guide passage along the second open side 118 when clamping the elongated object so that the clamping position is located in the elongated object guide groove 111, preventing the elongated object from being twisted or bent near the clamping position during pushing the elongated object, thereby making it possible to more smoothly push the elongated object forward or backward.

The holding portion 132 extends to the outside along the third open side 119, the holding portion 132 is pushed forward or backward, the mounting frame 13 rotates relative to the mounting frame 13, the driven wheel 14 mounted on the mounting portion 131 is driven to move away from the driving wheel 12, and a clamping space between the driving wheel 12 and the driven wheel 14 is enlarged, so that the elongated objects can be placed between the driving wheel 12 and the driven wheel 14, or the elongated objects can be taken out from between the driving wheel 12 and the driven wheel 14. The provision of the handle portion 132 improves the ease of access to the elongate article.

The slender object is clamped between the driving wheel 12 and the driven wheel 14, and the driving wheel 12 rotates to drive the driven wheel 14 to rotate, so that the slender object is pushed forwards or backwards, and the purpose of pushing the slender object is achieved. When the pushing assembly 1 is applied to the interventional field, the elongated object may be a catheter, a guide wire, or a guide wire of a therapeutic stent. That is, the pushing assembly 1 is applied to a control system of an interventional surgical instrument, and can be used as a module for pushing a catheter, and/or can be used as a module for pushing a guide wire of a therapeutic stent.

In some embodiments, referring to fig. 2 and 3, the pushing assembly 1 may further include: the elastic element 15, the elastic element 15 is arranged in the second accommodating space 113, one end of the elastic element 15 is connected with the mounting seat 11, the other end is connected with the mounting part 131, and under the action of the elastic element 15, the clamping space between the driving wheel 12 and the driven wheel 14 is suitable for clamping the elongated object.

After placing the elongated object, the elastic member 15 makes it possible to grip the elongated object by applying a force directed from the driven pulley 14 to the driving pulley 12 to the mounting portion 131. The relative position of the elastic member 15 and the mounting portion 131 determines whether the force can be classified as a tensile force or a compressive force. That is, the handle portion 132 is released, and the mounting portion 131 is pushed or pulled by the elastic member 15, so that the mounting portion 131 drives the driven wheel 14 to approach the driving wheel 12, thereby clamping the slender object between the driving wheel 12 and the driven wheel 14.

In some embodiments, the driven wheel 14 may be pressed (pushed) by the elastic force of the elastic member 15 toward the driving wheel 12 from the driven wheel 14, for example, the elastic member 15 is a spring, and is disposed on a side of the driven wheel 14 away from the driving wheel 12, in a free state, the spring is compressed by an inner wall (equal to the connecting rod 16 in the following) of the second accommodating space 113 and the mounting portion 131, and the compressed elastic force of the spring pushes the driven wheel 14 toward the driving wheel 12 to clamp the inserted slender object.

In other embodiments, a pulling force directed from the driven wheel 14 to the driving wheel 12 can be applied to the driven wheel 14 by the elastic force of the elastic member 15, for example, the elastic member 15 is a spring, and is disposed on a side of the driven wheel 14 close to the driving wheel 12, and in a free state, the spring is stretched by the inner wall of the second accommodating space 113 and the mounting portion 131, such a stretched state may be caused by pressing between the driven wheel 14 and the driving wheel 12, and the stretched elastic force of the spring pushes the driven wheel 14 close to the driving wheel 12 to clamp the inserted slender object.

In some embodiments, the mounting seat 11 is further provided with an elastic member mounting hole 114, and the elastic member mounting hole 114 communicates the second accommodating space 113 with the outside and is adapted to allow the elastic member 15 to pass through to be installed in the second accommodating space 113.

Specifically, the mounting base 11 is provided with a connecting hole 115, and the connecting hole 115 transversely penetrates through the elastic member mounting hole 114; the pushing assembly 1 further comprises: and the connecting rod 16, wherein the connecting rod 16 is inserted into the connecting hole 115, and the connecting rod 16 at least partially traverses the elastic member mounting hole 114 to limit the elastic member 15 from being removed from the elastic member mounting hole 114.

During installation, firstly, the hand-held portion 132 is pushed to enable the driven wheel 14 to lean against the driving wheel 12, then the elastic element 15 is plugged in through the elastic element installation hole 114 to enable one end of the elastic element 15 to be abutted against the installation portion 131, finally, the connecting rod 16 is plugged in the connecting hole 115, and the hand-held portion 132 is released so that the elastic element 15 is clamped between the installation portion 131 and the connecting rod 16, namely between the installation portion 131 and the installation seat 11. When the elongated object is inserted, the elastic member 15 is compressed, and the elongated object is clamped between the driving pulley 12 and the driven pulley 14 by means of the elastic force.

In some embodiments, the elastic member 15 is a spring, the mounting portion 131 is provided with a spring limiting hole 1311, a limiting protrusion 1312 is provided on a bottom surface of the spring limiting hole 1311, and one end of the spring is inserted into the spring limiting hole 1311 and is sleeved outside the limiting protrusion 1312. Through the design of this kind of structure, prevent that the spring from shifting in the use, influencing the use.

In some embodiments, the connection point of the mounting portion 131 and the handle portion 132 is connected to the top surface and the bottom surface of the second accommodating space 113 through a hinge. The mounting portion 131 and the hand-held portion 132 may be substantially "7" shaped, saving space and facilitating overall product space. Further, a hole for installing the rotating shaft on the bottom surface of the second accommodating space 113 is a through hole, specifically, a first rotating shaft through hole 120 in fig. 6. The rotating shaft can be installed from the through hole, and the installation mode is simple.

The first accommodating space 112 has a fourth open side 121, and the pushing assembly 1 further includes a pressing cover 17, wherein the pressing cover 17 is connected to the mounting seat 11 and covers the fourth open side 121 to press the driving wheel 12 into the first accommodating space 112. The driving wheel 12 is installed in the first accommodating space 112, and a rotating shaft of the driving wheel 12 can extend out of the second rotating shaft through hole 122 at the bottom of the installation seat 11, so as to be connected with an external power mechanism.

In some embodiments, the pushing component 1 may further include: the cover plate 5 (not shown in fig. 1-6, shown in fig. 7, the cover plate 5 is provided with a limit bump 51;

the mounting seat 11 is provided with an elongated object limiting groove 116, and the limiting projection 51 is inserted into the elongated object limiting groove 116 to limit the clamped elongated object from falling out of the elongated object guide groove 111. After the cover plate 5 is covered, the limiting projection 51 can limit the slender objects to be separated from the slender object limiting groove 116, so that the slender objects can be smoothly pushed forwards or backwards, and the pushing efficiency is improved.

It should be noted that the cover plate 5 may be independently disposed, and may also be rotatably connected to the mounting seat 11, or may be rotatably connected to another object fixed relative to the mounting seat 11, so as to close the cover plate 5, so that the limiting protrusion 51 is inserted into the elongated object limiting groove 116; or the cover 5 is opened so that the restriction projection 51 is withdrawn from the elongated object restriction groove 116, and thus the elongated object can be taken out of the elongated object restriction groove 116.

Based on the same inventive concept as the above-mentioned pushing assembly 1, the embodiment of the present invention further provides a control system of an interventional surgical device, referring to fig. 7, the control system of the interventional surgical device includes: the pushing assembly 1, the pushing assembly 1 is the pushing assembly 1 described in any of the above embodiments. The elongate object may be a catheter, a guidewire, or a guide wire for a therapeutic stent. Further, the control system of the interventional surgical instrument further comprises: the driving box base 2 is provided with a catheter driving device installation position 21 at the front end, a guide wire driving device installation position 22 at the rear end, a pushing component installation position 23 at the middle part, and a guide wire guide groove 24 is arranged between the catheter driving device installation position 21 and the guide wire driving device installation position 22 on the driving box base 2, in addition, a guide wire guide groove 25 is further arranged on the driving box, the guide wire guide groove 25 is communicated with the guide wire guide groove 24, and the guide wire guide groove 25 starts from the pushing component installation position 23 and ends at the guide wire guide groove 24.

Referring to fig. 8, the catheter driving unit 3 is installed at the catheter driving unit installation position 21 for driving the catheter to rotate during the process of delivering the catheter into the human body, and the advance or retreat of the catheter can be realized by driving the cartridge holder 2 to approach or depart from the access port. And the guide wire driving device 4 is arranged at the guide wire driving device installation position 22 and is used for driving the guide wire to move forwards or backwards or rotate. And the pushing component 1 is arranged at the pushing component mounting position 23 and is used for pushing the guide wire of the treatment bracket, so that the treatment bracket is sent to the lesion position along the guide wire.

The catheter drive device 3 is disposed at the front end of the guide wire drive device 4, and the guide wire enters the catheter from the rear end of the catheter. The guide wire driving device 4 is arranged between the catheter driving device 3 and the guide wire driving device 4 and is positioned at the side of the guide wire guide groove 24, the guide wire penetrates into the catheter, and the catheter driving device 3 and the guide wire driving device 4 act alternately or simultaneously to enable the catheter and the guide wire to be delivered to a focus position. The guide wire output from the pushing assembly 1 enters the guide wire guide groove 24 through the guide wire guide groove 25, so that the therapeutic stent enters the catheter along the guide wire, thereby delivering the therapeutic stent to the lesion site.

Referring to fig. 7, the guide wire driving device 4 includes an outer case 41, a first gear 42, a second gear 43, an outer case cover 44, and an inner driving case 45, the first gear 42, the second gear 43, and the inner driving case 45 are disposed inside the outer case 41, and the inner driving case 45 is rotatably mounted inside the outer case 41, the guide wire can be pushed to move forward or backward in the inner driving case 45, one of the first gear 42 and the second gear 43 is used to transmit external power to the inside of the inner driving case 45, so that the inner driving case 45 can push the guide wire to move forward or backward by driving at least one pair of rollers that clamp the guide wire, and the other is used to transmit external power to the inner driving case 45, so that the inner driving case 45 rotates inside the outer case 41, thereby realizing rotation of the guide wire. The outer box cover 44 is rotatably disposed on the driving box base 2, and is used for covering the guide wire driving device 4 in the guide wire driving device installation position 22.

The control system of the interventional operation instrument provided by the embodiment has the functions of conveying the catheter and the guide wire into the body of the patient and conveying the treatment bracket with the guide wire, realizes the diversification of product functions, has a compact structure and reasonable layout, and is favorable for realizing the purpose of conveying the catheter and the guide wire simultaneously.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "upper," "lower," "front," "rear," "left," "right," "inner," "outer," "axial," "radial," and the like are used in the orientation or positional relationship indicated in the drawings for convenience and simplicity of description, and are not intended to indicate or imply that the device or element so indicated must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" 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" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (10)

1. A push assembly (1), characterized in that it comprises:

a mounting seat (11), wherein the mounting seat (11) is provided with an elongated object guide groove (111), a first accommodating space (112) and a second accommodating space (113), the first accommodating space (112) is provided with a first open side (117) communicated with a guide channel of the elongated object guide groove (111), the second accommodating space (113) is provided with a second open side (118) communicated with the guide channel of the elongated object guide groove (111), and a third open side (119) communicated with the outside;

a drive wheel (12), said drive wheel (12) being rotatably mounted in said first accommodation space (112) and projecting along said first open side (117) towards said guide channel;

the mounting rack (13) comprises a mounting part (131) and a handheld part (132) which are connected with each other, the mounting rack (13) is rotatably inserted into the second accommodating space (113), and the handheld part (132) extends to the outside along the third open side (119);

a driven wheel (14), wherein the driven wheel (14) is rotatably arranged at one end of the mounting part (131) far away from the handheld part (132) and protrudes to the guide channel along the second open side (118) when clamping the elongated object;

when the mounting frame (13) rotates forwards and backwards, the driven wheel (14) is far away from or close to the driving wheel (12), so that the clamping space between the driving wheel (12) and the driven wheel (14) is suitable for releasing or clamping elongated objects.

2. The push assembly (1) according to claim 1, characterized in that it further comprises:

elastic component (15), elastic component (15) set up in second accommodation space (113), elastic component (15) one end with mount pad (11) are connected, the other end with installation department (131) are connected under the effect of elastic component (15), action wheel (12) with centre gripping space between following driving wheel (14) is suitable for pressing from both sides tight elongated object.

3. A push assembly (1) according to claim 2, further comprising:

and the elastic piece mounting hole (114) is communicated with the second accommodating space (113) and the outside, and is suitable for the elastic piece (15) to pass through so as to be installed in the second accommodating space (113).

4. A push assembly (1) according to claim 3, wherein the mounting seat (11) is provided with a connection hole (115), the connection hole (115) extending transversely through the resilient member mounting hole (114);

the push assembly (1) further comprises: the connecting rod (16) is inserted into the connecting hole (115), and at least part of the connecting rod (16) penetrates through the elastic piece mounting hole (114) to limit the elastic piece (15) from being separated from the elastic piece mounting hole (114).

5. A pushing assembly (1) according to claim 3, wherein the elastic member (15) is a spring, the mounting portion (131) is provided with a spring limiting hole (1311), the bottom surface of the spring limiting hole (1311) is provided with a limiting protrusion (1312), and one end of the spring is inserted between the limiting protrusions (1312) in the spring limiting hole (1311).

6. The pushing assembly (1) according to claim 1, wherein the joint of the mounting portion (131) and the holding portion (132) is connected with the top surface and the bottom surface of the second accommodating space (113) through a rotating shaft.

7. The pushing assembly (1) according to claim 6, wherein the hole on the bottom surface of the second accommodating space (113) for installing the rotating shaft is a through hole.

8. The pushing assembly (1) according to claim 1, wherein the first accommodating space (112) has a fourth open side (121), the pushing assembly (1) further comprising a pressing cover (17), the pressing cover (17) being connected with the mounting seat (11) and covering the fourth open side (121) for press-fitting the driving wheel (12) into the first accommodating space (112).

9. The push assembly (1) according to claim 1, characterized in that it further comprises:

the cover plate (5), wherein a limit bump (51) is arranged on the cover plate (5);

the mounting seat (11) is provided with an elongated object limiting groove (116), and the limiting lug (51) is inserted into the elongated object limiting groove (116) to limit the clamped elongated object from falling out of the elongated object guide groove (111).

10. A control system for an interventional surgical instrument, comprising:

a push assembly (1), the push assembly (1) being a push assembly (1) according to any one of claims 1-9.

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