CN208693380U - Surgical clamp clipping mechanism - Google Patents

Abstract

The utility model discloses a kind of surgical clamp clipping mechanism, including hand-held part, casing, shear body component, telescopic rod, withholds handle and transmission device, and hand-held part has an inner cavity；Casing is along preceding rearwardly extending, the rear end connection hand-held part of casing；Shear body component is installed on the front end of casing, and shear body component includes two shear bodies, and two shear bodies are hinged by positioning pin, and the rear end of two shear bodies offers a sliding slot, and two sliding slots are intersected；Telescopic rod is set in casing, and telescopic rod, along preceding rearwardly extending, the front end of telescopic rod is equipped with sliding pin, and sliding pin passes through two sliding slots；It withholds handle and is installed on hand-held part；Transmission device is installed on the inner cavity of hand-held part, transmission device connection expansion link and withholds handle；Transmission device is to drive telescopic rod to move backward when withholding handle by buckle press, to slide in two sliding slots by sliding pin, and two shear bodies is driven to close up.The utility model surgical clamp clipping mechanism, substantially reduces the operating space of needs.

Description

Surgical clamp clipping mechanism

Technical field

The utility model relates to medical instruments fields, in particular to a kind of surgical clamp clipping mechanism.

Background technique

Currently, existing surgical clamp clipping mechanism on the market, structure is single, is by between upper and lower shear body and rotational pin Cooperation target is cut out to realize.For the resection operation of human intracavity, (such as scope is viscous for this surgical clamp clipping mechanism Film resection operation, operation on liver etc.) when, generally require the length of surgical clamp clipping mechanism longer, such shear body can just protrude into people Cutting operation is carried out in the inner cavity of body.However, in order to save operating force, it will usually which the length for increasing shear body rear end thus can Biggish operating space is needed, so existing this kind of surgical clamp clipping mechanism is not suitable for the resection operation of human intracavity.

Utility model content

The main purpose of the utility model is to propose a kind of surgical clamp clipping mechanism, it is intended to solve existing surgical clamp shearing machine Structure needs the technical issues of biggish operating space.

To achieve the above object, the utility model proposes surgical clamp clipping mechanism, including hand-held part, casing, shear body group Part, telescopic rod withhold handle and transmission device, and the hand-held part has an inner cavity；Described sleeve pipe is along preceding rearwardly extending, the set The rear end of pipe connects the hand-held part；The shear body component is installed on the front end of described sleeve pipe, and the shear body component is cut including two Body, two shear bodies are hinged by positioning pin, and the rear end of two shear bodies offers a sliding slot, and two sliding slots are set in intersection It sets；The telescopic rod is set in described sleeve pipe, and the telescopic rod, along preceding rearwardly extending, the front end of the telescopic rod, which is equipped with, to be slided Dynamic pin, the sliding pin pass through two sliding slots；The handle of withholding is installed on the hand-held part；The transmission device is installed on The inner cavity of the hand-held part, the transmission device connect the telescopic rod and described withhold handle；The transmission device is to work as It is described to drive the telescopic rod to move backward when withholding handle by buckle press, with by the sliding pin in two sliding slots Interior sliding, and two shear bodies is driven to close up.

Preferably, the transmission device includes the first rack gear, the second rack gear, gear assembly, connector, first rack gear It is installed on the inner cavity of the hand-held part, the fixed company in the rear end of first rack gear and the rear end of the telescopic rod with can slide back and forth It connects；Second rack gear is located at the lower section of first rack gear, and second rack gear is installed on described hand-held in which can slide back and forth The inner cavity in portion；The gear assembly between first rack gear and second rack gear and with first rack gear and described Second rack gear engages, and the gear assembly is when it is turning, to drive first rack gear and second rack gear reversed It is mobile；The inner cavity of the hand-held part is articulated in the middle part of the connector, one end of the connector and the handle of withholding are lived Dynamic connection, the other end are flexibly connected with the front end of second rack gear, and the connector is buckled to withhold handle described in When pressure, first rack gear is driven to move forward.

Preferably, the gear assembly includes the first gear and second gear of coaxial arrangement, the first gear and institute The engagement of the first rack gear is stated, the second gear is engaged with second rack gear.

Preferably, the gear assembly includes third gear and the 4th gear, and the third gear is third gear, described 4th gear is set at the center of rotation of the third gear, and the third gear is engaged with first rack gear, and described Four gears are engaged with second rack gear.

Preferably, the transmission device further includes the first return unit, the front end and the hand-held part of first return unit Connection, the rear end of first return unit is connect with first rack gear.

Preferably, the transmission device further includes the second return unit, the front end of second return unit and second tooth Item connection, the rear end of second return unit is connect with the hand-held part.

Preferably, described withhold offers the first mounting groove on handle, and the front end of second rack gear offers the second peace Tankage, one end of the connector are installed on the first mounting groove of the peace, and the other end of the connector is installed on described second Mounting groove, first mounting groove and second mounting groove all have for the movable pre- degree of the connector.

Preferably, each sliding slot includes horizontal segment, the first tilting section and the second tilting section, first tilting section by The direction inclination that the rear end of the horizontal segment faces away from another sliding slot extends, and second tilting section is inclined by described first The direction inclination that the rear end of oblique section faces away from another sliding slot extends, the angle of first tilting section and the horizontal segment Greater than the angle of second tilting section and the horizontal segment, the horizontal segment and first tilting section and first inclination Section is smooth transition with second tilting section.

Preferably, fixation hole is opened up on the side wall of described sleeve pipe, two shear bodies are inserted into described solid by the positioning pin Determine hole and is fixed in described sleeve pipe；The front end of described sleeve pipe is also provided with along preceding rearwardly extending guide groove, the guide groove Positioned at the rear side of the fixation hole, the sliding pin passes through the guide groove and can slide in the guide groove.

Preferably, the opposite sides of the front end of described sleeve pipe offers the notch stepped down for the two shear body rotations.

The utility model surgical clamp clipping mechanism includes hand-held part, casing, shear body component, telescopic rod, withholds handle and biography Dynamic device, the shear body component include two shear bodies, and two shear bodies are hinged by positioning pin, and the rear end of two shear bodies opens up There is a sliding slot, two sliding slots are intersected；The telescopic rod is set in described sleeve pipe, and the telescopic rod along front and back to Extend, the front end of the telescopic rod is equipped with sliding pin, and the sliding pin passes through two sliding slots；The handle of withholding is installed on institute State hand-held part；The transmission device is installed on the inner cavity of the hand-held part, and the transmission device connects the telescopic rod and described Withhold handle；The transmission device to when it is described withhold handle by buckle press when, drive the telescopic rod to move backward, with It is slided in two sliding slots by the sliding pin, and two shear bodies is driven to close up.Therefore, surgical clamp clipping mechanism Can by withhold it is described detain handle, and closed up by two shear bodies of transmission device drive, to substantially reduce institute The operating space needed.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that,

The drawings in the following description are merely some embodiments of the present invention, and those of ordinary skill in the art are come It says, without creative efforts, the structure that can also be shown according to these attached drawings obtains other attached drawings.

Fig. 1 is the internal structure chart of surgical clamp clipping provided by the utility model mechanism, and middle sleeve has been cutd open part Structure；

Fig. 2 is the cross-sectional view of surgical clamp clipping shown in FIG. 1 mechanism；

Fig. 3 is the partial enlarged view of region A in Fig. 2；

Fig. 4 is the partial enlarged view of region B in Fig. 2；

Fig. 5 is the partial structural diagram of casing.

Drawing reference numeral explanation:

The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than all Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise Under every other embodiment obtained, fall within the protection scope of the utility model.

It is to be appreciated that if related in the utility model embodiment directionality instruction (such as upper and lower, left and right, it is preceding, Afterwards ...), then directionality instruction is only used for explaining opposite between each component under a certain particular pose (as shown in the picture) Positional relationship, motion conditions etc., if the particular pose changes, directionality instruction is also correspondingly changed correspondingly.

In addition, if relating to the description of " first ", " second " etc. in the utility model embodiment, " first ", " the Two " etc. description is used for description purposes only, and is not understood to indicate or imply its relative importance or is implicitly indicated meaning The quantity of the technical characteristic shown." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one A this feature.It in addition, the technical solution between each embodiment can be combined with each other, but must be with ordinary skill Based on personnel can be realized, this technical side will be understood that when the combination of technical solution appearance is conflicting or cannot achieve The combination of case is not present, also not within the protection scope of the requires of the utility model.

The utility model proposes a kind of surgical clamp clipping mechanisms.Wherein, surgical clamp clipping mechanism is mainly used for human body The resection operation of inner cavity.

Referring to figs. 1 to Fig. 4, the utility model proposes surgical clamp clipping mechanism, including hand-held part 1, casing 2, shear body group Part 3, telescopic rod 4 withhold handle 5 and transmission device 6, and the hand-held part 1 has an inner cavity；Described sleeve pipe 2 along preceding rearwardly extending, The rear end of described sleeve pipe 2 connects the hand-held part 1；The shear body component 3 is installed on the front end of described sleeve pipe 2, the shear body group Part 3 includes two shear bodies 31, and two shear bodies 31 are hinged by positioning pin 32, and the rear end of two shear bodies 31 offers a sliding slot 34, two sliding slots 34 are intersected；The telescopic rod 4 is set in described sleeve pipe 2, and the telescopic rod 4 along front and back to Extend, the front end of the telescopic rod 4 is equipped with sliding pin 33, and the sliding pin 33 passes through two sliding slots 34；It is described to withhold handle 5 It is installed on the hand-held part 1；The transmission device 6 is installed on the inner cavity of the hand-held part 1, and the transmission device 6 connects described Telescopic rod 4 and described withhold handle 5；The transmission device 6 to when it is described withhold handle 5 by buckle press when, described in drive Telescopic rod 4 moves backward, and to slide in two sliding slots 34 by the sliding pin 33, and two shear bodies 31 is driven to close Hold together.

The hand-held part 1 is an integral molding structure.The hand-held part 1 includes main part 11 and fixed handle 12, described solid Determine the lower section that handle 12 is located at the main part 11, the handle 5 of withholding is movably installed on the fixed handle 12, and described Withholding handle 5 can be close to the fixed handle 12 by buckle press, withholds handle 5 when described and is bonded with the fixed handle 12 When together, two shear bodies 31 are fully come together.

Described sleeve pipe 2 is hollow cylindrical-shaped structure, and described sleeve pipe 2 can be integrated formed structure.Certainly, described sleeve pipe 2 are also possible to by first sleeve and second casing two parts are detachably connected forms, and are convenient for the shear body component 3 and institute in this way State the assembly and disassembly of telescopic rod 4.Specifically, the shear body component 3 is installed on the front end of the first sleeve, it is described flexible Bar 4 is installed in second casing.

Two sliding slots 34 are intersected, specifically, wherein a sliding slot 34 is obliquely installed towards back upper place, it is another The sliding slot 34 is obliquely installed towards the back lower place.Here, the sliding slot 34 can be straight shape groove, or fold-line-shaped slot.

The telescopic rod 4 can be structure as a whole, it is possible to understand that, the telescopic rod 4 also may include the first pars contractilis And the second pars contractilis being detachably connected with first pars contractilis.Wherein, the front end of first pars contractilis offers receiving The rear end of slot (not shown), two shear bodies 31 is respectively positioned in the holding tank, and it is flexible that the sliding pin 33 is set to described first The front end in portion and pass through two sliding slots 34.

The utility model surgical clamp clipping mechanism includes hand-held part 1, casing 2, shear body component 3, telescopic rod 4, withholds handle 5 With transmission device 6, the shear body component 3 includes two shear bodies 31, and two shear bodies 31 are hinged by positioning pin 32, two shear bodies 31 rear end offers a sliding slot 34, and two sliding slots 34 are intersected；The telescopic rod 4 is set in described sleeve pipe 2, And the telescopic rod 4, along preceding rearwardly extending, the front end of the telescopic rod 4 is equipped with sliding pin 33, the sliding pin 33 passes through two institutes State sliding slot 34；The handle 5 of withholding is installed on the hand-held part 1；The transmission device 6 is installed on the inner cavity of the hand-held part 1, The transmission device 6 connects the telescopic rod 4 and described withholds handle 5；The transmission device 6 is to withhold handle 5 when described When by buckle press, the telescopic rod 4 is driven to move backward, to be slided in two sliding slots 34 by the sliding pin 33, And two shear bodies 31 is driven to close up.Therefore, surgical clamp clipping mechanism can by withhold it is described detain handle, and pass through institute Stating transmission device 6 drives two shear bodies 31 to close up, to substantially reduce required operating space.

In a preferred embodiment, the transmission device 6 includes the first rack gear 61, the second rack gear 62, gear assembly, connection Part 66.First rack gear 61 is installed on the inner cavity of the hand-held part 1 in which can slide back and forth, the rear end of first rack gear 61 with The rear end of the telescopic rod 4 is fixedly connected；Second rack gear 62 is located at the lower section of first rack gear 61, second rack gear 62 are installed on the inner cavity of the hand-held part 1 in which can slide back and forth.The gear assembly is located at first rack gear 61 and described the It is engaged between two rack gears 62 and with first rack gear 61 and second rack gear 62, the gear assembly is in its rotation When, drive first rack gear 61 to move backward with second rack gear 62.The middle part of the connector 66 is articulated with the hand The inner cavity in portion 1 is held, one end of the connector 66 is flexibly connected with the handle 5 of withholding, the other end and second rack gear 62 Front end be flexibly connected, the connector 66 to when it is described withhold handle 5 by buckle press when, drive first rack gear 61 It moves forward.

For example, second rack gear 62 moves backward if first rack gear 61 moves forward, described stretch is driven with this Contracting bar 4 moves backward.In addition, being additionally provided in the inner cavity of the hand-held part 1 to limit first rack gear 61 along front and back to shifting The first dynamic sliding rail, and to limit second rack gear 62 along front and back to the second sliding rail moved.

In a preferred embodiment, the gear assembly includes the first gear and second gear of coaxial arrangement, and described the One gear and the second gear are circular gear.The first gear is engaged with first rack gear 61, second tooth Wheel is engaged with second rack gear 62, and the first gear and the second gear can be rotated around same axis.In order to operate province Power can make the diameter of the first gear be greater than the diameter of the second gear.It is, of course, understood that described first The diameter of gear can also be equal to or less than the diameter of the second gear.

Referring to Fig. 3, in another embodiment, the gear assembly includes third gear 63a and the 4th gear 63b, The third gear 63a be fan tooth, the 4th gear 63b be set to it is described fan tooth 63a center of rotation at, the fan tooth and The 4th gear 63b can be rotated around the center of rotation.Third gear 63a is engaged with first rack gear 61, and described Four gear 63b are engaged with second rack gear 62.In this way, when it is described withhold handle 5 by lesser buckle press when, described in drive Second rack gear 62 moves forward lesser distance, then passes through the cooperation of third gear 63a and the 4th gear 63b, can make institute It states the first rack gear 61 and moves backward biggish distance, to reach labour-saving effect.

The transmission device 6 further includes the first return unit 64, and the front end of first return unit 64 and the hand-held part 1 connect It connects, the rear end of first return unit 64 is connect with first rack gear 61, and first return unit 64 can be along front and back to flexible. Here, the effect of first return unit 64 is that first rack gear 61 can be made to be reset to initial position.Specifically, described First return unit 64 is tension spring.Certainly, first return unit 64 or pressure spring, first return unit 64 can also be Silicagel column or rubber band.

The transmission device 6 further includes the second return unit 65, the front end of second return unit 65 and second rack gear 62 connections, the rear end of second return unit 65 connect with the hand-held part 1, and second return unit 65 can be along front and back to stretching Contracting.The effect of second return unit 65 is that second rack gear 62 can be made to be reset to initial position.Specifically, described Two return units 65 are tension spring.Equally, second return unit 65 or pressure spring, second return unit 65 can also be silicon Rubber column gel column or rubber band.

In the present embodiment, described withhold offers the first mounting groove 51 on handle 5, and the front end of second rack gear 62 is opened Equipped with the second mounting groove 661, one end of the connector 66 is installed on the first mounting groove 51 of the peace, the connector 66 it is another One end is installed on second mounting groove 661, and first mounting groove 51 all has with second mounting groove 661 for the company The movable pre- degree of fitting 66.

The number of the connector 66 can be one, or two.For example, if the number of the connector 66 is Two, then two connectors 66 are articulated on the side wall of the hand-held part 1 by a fixed pin, two connectors 66 It is rotated along the fixed pin 32.The number of the connector 66 is two, can make the connector 66 with it is described detain handle and The connection of first rack gear 61 is more firm.Also, the number of the number of first mounting groove 51 and second mounting groove 661 Mesh is equal with the number of the connector 66.

Referring to Fig. 4, in a preferred embodiment, each sliding slot 34 include horizontal segment 341, the first tilting section 342 and Second tilting section 343.The horizontal segment 341 is along preceding rearwardly extending, after first tilting section 342 is by the horizontal segment 341 The direction inclination that end faces away from another sliding slot 34 extends, and second tilting section 343 is by first 342 sections of the inclination The direction inclination that rear end faces away from another sliding slot 34 extends.The folder of first tilting section 342 and the horizontal segment 341 Angle is greater than the angle of second tilting section 343 and the horizontal segment 341.The horizontal segment 341 and first tilting section 342 It is connected smoothly, first tilting section 342 is also connected smoothly with second tilting section 343.Here, the sliding slot 34 design in three stage structure, and surgical clamp clipping mechanism can be made smoothly can to open and close up in use, It may also reach up labour-saving effect simultaneously.

Referring to Fig. 5, fixation hole 23 is opened up on the side wall of described sleeve pipe 2, two shear bodies 31 are inserted by the positioning pin 32 Enter the fixation hole 23 and is fixed in described sleeve pipe 2.It is also provided on the side wall of described sleeve pipe 233 and is led along preceding rearwardly extending To slot 21, the guide groove 21 is located at the rear side of the fixation hole 23, and the sliding pin 33 passes through the guide groove 21 and can be Sliding in the guide groove 21.The opposite sides of described sleeve pipe 2 offers the notch 22 stepped down for two rotations of shear body 31.

When using the utility model surgical clamp clipping mechanism, with hand withhold it is described withhold handle 5, pass through the connector 66 It drives first rack gear 61 to move forward, and passes through the gear assembly and first rack gear 61 and second rack gear 62 Engagement, be further driven to second rack gear 62 and move backward, so that the telescopic rod 4 be driven to move backward, with logical It crosses the sliding pin 33 to slide in two sliding slots 34, and two shear bodies 31 is driven to close up.It is multiple described first after loosing one's grip Position part 64 and second return unit 65 reset response under, first rack gear 61 moves backward, second rack gear 62 to Preceding movement, so that the telescopic rod 4 is driven to move forward, to be slided in two sliding slots 34 by the sliding pin 33, with This described shear body 31 of driving two is opened.

The above is only the preferred embodiment of the present invention, and therefore it does not limit the scope of the patent of the utility model, It is all under the inventive concept of the utility model, equivalent structure made based on the specification and figures of the utility model becomes It changes, or directly/be used in other related technical areas indirectly and be included in the scope of patent protection of the utility model.

Claims (10)

1. a kind of surgical clamp clipping mechanism characterized by comprising

Hand-held part has an inner cavity；

Casing, along preceding rearwardly extending, the rear end connection hand-held part of described sleeve pipe；

Shear body component is installed on the front end of described sleeve pipe, and the shear body component includes two shear bodies, and two shear bodies pass through positioning pin Hingedly, the rear end of two shear bodies offers a sliding slot, and two sliding slots are intersected；

Telescopic rod is set in described sleeve pipe, and the telescopic rod, along preceding rearwardly extending, the front end of the telescopic rod is equipped with sliding Pin, the sliding pin pass through two sliding slots；

Handle is withheld, the hand-held part is installed on；

Transmission device, is installed on the inner cavity of the hand-held part, and the transmission device connects the telescopic rod and described withholds handle；

The transmission device to when it is described withhold handle by buckle press when, drive the telescopic rod to move backward, to pass through The sliding pin slides in two sliding slots, and two shear bodies is driven to close up.

2. surgical clamp clipping as described in claim 1 mechanism, which is characterized in that the transmission device includes:

First rack gear, is installed on the inner cavity of the hand-held part in which can slide back and forth, and the rear end of first rack gear is stretched with described The rear end of bar is fixedly connected；

Second rack gear, positioned at the lower section of first rack gear, second rack gear is installed on the hand-held part in which can slide back and forth Inner cavity；

Gear assembly, between first rack gear and second rack gear and with first rack gear and second rack gear It engages, the gear assembly is when it is turning, to drive first rack gear and second rack gear to move backward；

Connector is articulated with the inner cavity of the hand-held part in the middle part of the connector, and one end of the connector is withheld with described Handle is flexibly connected, and the other end is flexibly connected with the front end of second rack gear, and the connector is to withhold handle when described When by buckle press, first rack gear is driven to move forward.

3. surgical clamp clipping as claimed in claim 2 mechanism, which is characterized in that the gear assembly includes the of coaxial arrangement One gear and second gear, the first gear are engaged with first rack gear, and the second gear is nibbled with second rack gear It closes.

4. surgical clamp clipping as claimed in claim 2 mechanism, which is characterized in that the gear assembly includes third gear and Four gears, the third gear are fan tooth, and the 4th gear is set at the center of rotation of the third gear, the third Gear is engaged with first rack gear, and the 4th gear is engaged with second rack gear.

5. surgical clamp clipping as claimed in claim 2 mechanism, which is characterized in that the transmission device further includes the first reset The front end of part, first return unit is connect with the hand-held part, and the rear end of first return unit and first rack gear connect It connects.

6. surgical clamp clipping as claimed in claim 2 mechanism, which is characterized in that the transmission device further includes the second reset Part, the front end of second return unit are connect with second rack gear, and the rear end and the hand-held part of second return unit connect It connects.

7. surgical clamp clipping as claimed in claim 2 mechanism, which is characterized in that described withhold offers the first installation on handle Slot, the front end of second rack gear offer the second mounting groove, and one end of the connector is installed on first mounting groove, institute The other end for stating connector is installed on second mounting groove, and first mounting groove and second mounting groove all have for institute State the movable pre- degree of connector.

8. surgical clamp clipping as described in claim 1 mechanism, which is characterized in that each sliding slot includes horizontal segment, first Tilting section and the second tilting section, first tilting section are faced away from the direction of another sliding slot by the rear end of the horizontal segment Inclination extends, and second tilting section is prolonged by the direction inclination that the rear end of first tilting section faces away from another sliding slot It stretches, the angle of first tilting section and the horizontal segment is greater than the angle of second tilting section and the horizontal segment, described Horizontal segment and first tilting section and first tilting section and second tilting section are smooth transition.

9. surgical clamp clipping as described in claim 1 mechanism, which is characterized in that fixation hole is opened up on the side wall of described sleeve pipe, Two shear bodies are inserted into the fixation hole by the positioning pin and are fixed in described sleeve pipe；The front end of described sleeve pipe also opens up Have along preceding rearwardly extending guide groove, the guide groove is located at the rear side of the fixation hole, and the sliding pin passes through the guiding It slot and can be slided in the guide groove.

10. surgical clamp clipping as described in claim 1 mechanism, which is characterized in that the opposite sides of described sleeve pipe offers The notch stepped down for the two shear body rotations.