Gun type rongeur

Abstract

The utility model relates to the technical field of medical treatment, and provides a gun type rongeur which comprises a rongeur body, the rongeur body comprises a grab handle, a trigger, an upper rongeur body and a lower rongeur body, the grab handle is fixedly connected with the lower rongeur body, the trigger is hinged in the lower rongeur body, the upper rongeur body is connected with the lower rongeur body in a sliding mode, and inserting grooves are formed in the tail ends of the upper rongeur body and the lower rongeur body. The slot is used for mounting a detachable clamping part; according to the bone rongeur, the quick release assembly is arranged at the position close to the inserting groove, the quick release assembly comprises a lock catch, a locking elastic piece, a swing rod, an upper marble, a lower marble and an unlocking block, due to the replaceable clamping parts, the use requirement can be met by only needing two or three clamp bodies to be matched with the multiple clamping parts, and the space occupied by bone rongeur bodies of various specifications is effectively reduced; when the clamping part needs to be replaced, a user only needs to pull the swing rod to enable the upper pin tumbler and the lower pin tumbler to rotate by a certain angle, the unlocking block which rotates together can push the lock catch away, and the clamping part can be pushed out by the pushing elastic piece.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field especially relates to a gun type rongeur. BACKGROUND

[0002] The vertebral plate rongeur is mainly used for taking dead bone or trimming bone stump, and is a surgical instrument, and the common vertebral plate rongeur comprises an upper handle, a lower handle, a grip handle and a trigger, the grip handle is connected with the lower handle, the trigger is hinged to the lower handle, and the upper handle and the lower handle can be relatively moved by pressing the trigger.

[0003] The vertebral plate rongeur is mainly used for taking dead bone or trimming bone stump, and is a surgical instrument, and the common vertebral plate rongeur comprises an upper handle, a lower handle, a grip handle and a trigger, the grip handle is connected with the lower handle, the trigger is hinged to the lower handle, and the upper handle and the lower handle can be relatively moved by pressing the trigger. SUMMARY

[0004] The utility model discloses a gun type rongeur which aims at solving the problem of large space occupation of the existing vertebral plate rongeur.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a gun type rongeur, which comprises a clamp body, the clamp body comprises a handle, a trigger, an upper clamp and a lower clamp, the handle is fixedly connected with the lower clamp, the trigger is hinged in the lower clamp and the trigger is in transmission connection with the upper clamp, the upper clamp and the lower clamp are in sliding connection, the upper clamp and the lower clamp are provided with a slot at the end, and the slot is used for installing a detachable clamping part.

[0006] A quick release assembly is arranged near the slot, the quick release assembly comprises a lock catch, a locking elastic element, a swing rod, an upper marble, a lower marble and an unlocking block, the locking cavities are arranged in the upper clamp and the lower clamp, two lock catches are arranged in each set of locking cavities, the lock catch is provided with a lock tongue at one end and a baffle at the other end, and the locking elastic element is arranged between the two baffles; the upper marble is connected with the lower marble, the upper marble is arranged in the upper clamp, and the unlocking block is arranged on the upper marble; the lower marble is arranged in the lower clamp, and the unlocking block is also arranged on the lower marble; and the lower marble is connected with the swing rod.

[0007] Further, the upper marble is provided with a groove, the lower marble is provided with a convex block, the convex block is matched with the groove, the locking slot is arranged on the upper clamp, and the cross section of the locking slot is consistent with the cross section of the groove.

[0008] Further, the trigger is hinged to the lower clamp through a hinge rod, and a gland is arranged at both ends of the hinge rod; one end of the trigger is provided with a swing groove, and a latch is arranged on the upper clamp and can be abutted against the swing groove.

[0009] Further, a sliding groove is arranged on the lower clamp, a sliding block is arranged on the upper clamp and can slide in the sliding groove, and an opening is arranged at one end of the sliding groove; a spring piece is mounted on the handle and one end of the spring piece is abutted against the trigger.

[0010] Further, the clamping part comprises a forward fixed jaw and a forward movable jaw, the forward fixed jaw and the forward movable jaw are provided with a jaw opening at one end and a plug at the other end; the forward fixed jaw and the forward movable jaw are slidingly connected; the forward fixed jaw is connected with the lower clamp, and the forward movable jaw is connected with the upper clamp.

[0011] Further, the clamping part comprises a reverse fixed jaw and a reverse movable jaw, the reverse fixed jaw and the reverse movable jaw are provided with a jaw opening at one end and a plug at the other end; a sliding groove is arranged on the reverse fixed jaw, a sliding pin is arranged on the reverse movable jaw and can slide in the sliding groove; the reverse fixed jaw is connected with the lower clamp, and the reverse movable jaw is connected with the upper clamp.

[0012] Further, the plug is matched with the slot, a clamping groove and a limiting plate are arranged on the plug, the clamping groove is matched with the lock tongue, and the limiting plates are arranged on both sides of the plug and have different lengths.

[0013] Further, a pushing elastic member is arranged in the slot.

[0014] Further, a positioning groove is arranged on the upper clamp, and a positioning block is arranged on the plug of the forward movable jaw and the reverse movable jaw.

[0015] Compared with the prior art, the replaceable clamping part of the gun type rongeur can meet the use requirement by only two or three clamp bodies cooperating with multiple clamping parts, and the space occupied by multiple specifications of rongeurs is effectively reduced; when the clamping part needs to be replaced, the user only needs to move the swing lever to rotate the upper and lower marbles by a certain angle, and the rotating unlocking block will push away the lock catch, so that the clamping part can be pushed out by the pushing elastic member; when installation is needed, the user only needs to align the clamping part with the slot and directly insert it. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a perspective view of the utility model;

[0017] Figure 2 is a perspective view of the clamp body in the utility model;

[0018] Figure 3 is a sectional view of the clamp body in the utility model;

[0019] Figure 4 is a sectional view of the upper clamp of the utility model;

[0020] Figure 5 is an exploded view of the upper clamp of the utility model;

[0021] Figure 6 is a sectional view of the upper clamp of the utility model;

[0022] Figure 7 is Figure 6 the local enlarged view of A part in the middle;

[0023] Figure 8 is a perspective view of the upper clamp of the utility model;

[0024] Figure 9 is a perspective view of the lower clamp of the utility model;

[0025] Figure 10 is a sectional view of the lower clamp of the utility model;

[0026] Figure 11 is a plan view of the lower clamp of the utility model;

[0027] Figure 12 is an exploded view of the lower clamp of the utility model;

[0028] Figure 13 is Figure 12 the local enlarged view of B part in the middle;

[0029] Figure 14 is a perspective view of a clamping part of the utility model;

[0030] Figure 15 is Figure 14 the local enlarged view of C part in the middle;

[0031] Figure 16 is a sectional view of a clamping part of the utility model;

[0032] Figure 17 is a perspective view of another clamping part of the utility model;

[0033] Figure 18 is a plan view of another clamping part of the utility model.

[0034] BRIEF DESCRIPTION OF DRAWINGS:

[0035] Wherein; 1, clamp body; 10, handle; 11, trigger; 110, articulated rod; 111, swing groove; 112, gland; 12, lower clamp; 120, sliding groove; 121, opening; 13, upper clamp; 130, bolt; 131, sliding block; 132, locking groove; 14, spring piece; 2, insertion slot; 20, positioning groove; 21, push elastic member; 3, quick release assembly; 30, lock catch; 31, lock tongue; 32, baffle; 33, locking elastic member; 34, upper marble; 35, unlocking block; 36, groove; 37, lower marble; 38, protrusion; 39, swing rod; 4, clamping part; 40, plug; 400, positioning block; 401, clamping groove; 402, limiting plate; 41, forward movable forceps; 42, forward fixed forceps; 43, reverse movable forceps; 44, reverse fixed forceps. DETAILED DESCRIPTION

[0036] The utility model will be illustrated in detail below in combination with specific embodiments.

[0037] In the utility model, except another explicit stipulation and limitation, when appearing the term such as " set in " " be connected " " connection " these terms should be broad sense to understand, for example, can be fixed connection, detachable connection or integral connection, can be directly connected or be connected through one or more intermediate medium. For the person skilled in the art, the specific meaning of the above-mentioned term in the utility model can be understood according to specific circumstances. For the direction word appearing in the utility model, it is to better illustrate the characteristics of features and the relationship between features, it should be understood that when the display direction of the utility model changes, the direction of the characteristics of features and the relationship between features also changes accordingly, therefore the direction word does not constitute the absolute limitation of the characteristics of features and the relationship between features in space, and only plays a relative limiting role.

[0038] As Figures 1 to 18 The utility model provides a gun type rongeur, including clamp body 1, clamp body 1 includes handle 10, trigger 11, upper clamp 13 and lower clamp 12, handle 10 is fixedly connected with lower clamp 12, trigger 11 is hinged in lower clamp 12 and trigger 11 is transmission connection with upper clamp 13, upper clamp 13 is slidably connected with lower clamp 12, and upper clamp 13 and lower clamp 12 end are provided with insertion slot 2, and insertion slot 2 is used for installing detachable clamping part 4;

[0039] A quick release assembly 3 is arranged near the slot 2, and the quick release assembly 3 comprises a lock catch 30, a locking elastic member 33, a swing lever 39, an upper spring 34, a lower spring 37 and an unlocking block 35. The upper clamp 13 and the lower clamp 12 are both provided with locking cavities, and two lock catches 30 are arranged in each set of locking cavities. The lock catch 30 is provided with a lock tongue 31 at one end and a baffle 32 at the other end, and the locking elastic member 33 is arranged between the two baffles 32. The upper spring 34 is connected with the lower spring 37, and the upper spring 34 is arranged in the upper clamp 13. The unlocking block 35 is arranged on the upper spring 34. The lower spring 37 is arranged in the lower clamp 12, and the unlocking block 35 is also arranged on the lower spring 37. The lower spring 37 is connected with the swing lever 39.

[0040] Through the above design scheme, when the rongeur needs to be used for surgery, the user only needs to press the trigger 11, and the rotating trigger 11 can push the upper clamp 13 to slide on the lower clamp 12. When the swing lever 39 is rotated, the fixedly connected lower spring 37 will rotate with the swing lever 39, and the lower spring 37 will also drive the upper spring 34 to rotate together. The rotating upper spring 34 and the lower spring 37 will drive the unlocking block 35 to rotate. In this embodiment, the unlocking block 35 is in the shape of an ellipse. When the short axis of the ellipse faces the lock catch 30, the lock catch 30 is in a closed state under the action of the locking elastic member 33. When the unlocking block 35 rotates from the short axis facing the lock catch 30 to the long axis facing the lock catch 30, since the long axis of the elliptical unlocking block 35 is longer than the distance between the two lock catches 30, the two lock catches 30 will be pushed apart by the unlocking block 35, and at this time the lock catch 30 is in an unlocked state. When the swing lever 39 is released, the lock catch 30 will be converted back to the closed state under the action of the locking elastic member 33.

[0041] In order to facilitate storage, in this embodiment, the lower clamp 12 is provided with a fixed block at the bottom, and the fixed block is used to limit the swing lever 39. When the swing lever 39 is limited by the fixed block, the short axis of the unlocking block 35 is aligned with the lock catch 30.

[0042] In this embodiment, the upper spring 34 is provided with a groove 36, the lower spring 37 is provided with a protrusion 38, the protrusion 38 is matched with the groove 36, and the upper clamp 13 is provided with a locking groove 132, and the cross section of the locking groove 132 is consistent with the cross section of the groove 36.

[0043] Through the above design scheme, the upper spring 34 can be driven to rotate together with the lower spring 37 through the cooperation of the groove 36 and the protrusion 38. When the trigger 11 is pressed to make the upper clamp 13 slide, the protrusion 38 will slide into the locking groove 132, at this time the upper spring 34 and the lower spring 37 are out of position, and the swing lever 39 and the lower spring 37 cannot rotate under the limiting action of the locking groove 132, so as to avoid that the lock catch 30 enters the unlocked state due to the accidental touch of the swing lever 39 during the surgery.

[0044] In the embodiment, the length of the lock catch 30 on the lower clamp 12 is longer than that of the lock catch 30 on the upper clamp 13, and the long axis of the unlocking block 35 in the lower clamp 12 is shorter than that of the unlocking block 35 in the upper clamp 13.

[0045] When the quick release assembly 3 needs to be installed, the operator only needs to use tweezers to clamp the unlocking block 35 and place it into the locking cavity, then insert the upper marble 34 into the unlocking block 35, and set the diameter of the upper marble 34 to be slightly larger than the installation hole of the upper clamp 13 for the insertion of the upper marble 34, so that the upper marble 34 is fixed by interference fit; when the lock catch 30 is installed, the operator only needs to place the lock catch 30 into the locking cavity and then insert the pin.

[0046] In the embodiment, the trigger 11 is hinged to the lower clamp 12 through the hinge rod 110, and the gland 112 is arranged at both ends of the hinge rod 110; one end of the trigger 11 is provided with the swing groove 111, and the upper clamp 13 is provided with the latch 130 which can abut against the swing groove 111.

[0047] When the trigger 11 is pressed, the trigger 11 rotates around the hinge rod 110, so that the swing groove 111 can push the latch 130 to drive the upper clamp 13 to slide forward.

[0048] In the embodiment, the lower clamp 12 is provided with the sliding groove 120, the upper clamp 13 is provided with the sliding block 131 which can slide in the sliding groove 120, and the opening 121 is arranged at one end of the sliding groove 120; the spring piece 14 is installed on the handle 10, and one end of the spring piece 14 abuts against the trigger 11.

[0049] When the trigger 11 is pressed, the spring piece 14 on the handle 10 is compressed, and the trigger 11 is automatically reset under the action of the spring piece 14 after the hand is released, and the swing groove 111 drives the latch 130 to move backward. The sliding groove 120 and the sliding block 131 limit the relative movement direction and range between the upper clamp 13 and the lower clamp 12, and when the installation is performed, the operator only needs to place the sliding block 131 into the sliding groove 120 by aligning the opening 121 of the sliding groove 120, then push the upper clamp 13 backward to make the sliding block 131 reach the innermost end of the sliding groove 120, and then insert the trigger 11 upward from the lower clamp 12, and only need to pay attention to align the swing groove 111 with the latch 130 during the insertion; then the hinge rod 110 is inserted and the gland 112 is compressed to complete the assembly of the clamp body 1.

[0050] Since the handle 10, the trigger 11, the upper clamp 13 and the lower clamp 12 belong to the prior art and are not the improvement points of the embodiment, they are not described in detail in the embodiment.

[0051] As Figures 14 to 16As shown in the embodiment, the clamping part 4 comprises a forward fixed jaw 42 and a forward movable jaw 41, the forward fixed jaw 42 and the forward movable jaw 41 are provided with a jaw opening at one end and a plug 40 at the other end; the forward fixed jaw 42 and the forward movable jaw 41 are connected in a sliding manner; the forward fixed jaw 42 is connected to the lower clamp 12, and the forward movable jaw 41 is connected to the upper clamp 13.

[0052] As shown in the embodiment, the clamping part 4 comprises a forward fixed jaw 42 and a forward movable jaw 41, the forward fixed jaw 42 and the forward movable jaw 41 are provided with a jaw opening at one end and a plug 40 at the other end; the forward fixed jaw 42 and the forward movable jaw 41 are connected in a sliding manner; the forward fixed jaw 42 is connected to the lower clamp 12, and the forward movable jaw 41 is connected to the upper clamp 13. Figures 17 to 18 In the embodiment, the plug 40 is matched with the slot 2, the plug 40 is provided with a clamping groove 401 and a limiting plate 402, the clamping groove 401 is matched with the locking tongue 31, and the limiting plate 402 is arranged on both sides of the plug 40, and the lengths of the limiting plates 402 on both sides of the plug 40 are different.

[0053] Through the above design scheme, when the clamping part 4 needs to be installed, the user only needs to insert the plug 40 into the slot 2 in the opposite direction, in the process of inserting the plug 40 into the slot 2, the plug 40 pushes the locking catch 30 to both sides, when the plug 40 is completely inserted into the slot 2, the clamping groove 401 on the plug 40 is aligned with the locking tongue 31, the locking tongue 31 clamps the clamping groove 401, so that the plug 40 can be limited in the slot 2. The limiting plate 402 is used for auxiliary positioning, and can also enhance the connection strength, so that the clamping part 4 can be more firmly locked on the clamp main body 1, and the limiting plates 402 with different lengths can also avoid reverse error installation.

[0054] In the embodiment, a pushing elastic member 21 is arranged in the slot 2. The pushing elastic member 21 can pop the plug 40 out of the slot 2, when the locking catch 30 is in the unlocked state by rotating the swing lever 39, the clamping part 4 which loses the limitation will be popped out by the pushing elastic member 21, which is convenient for the operator to replace, and the plug 40 which is installed in place can also be prevented from moving randomly under the elastic force of the pushing elastic member 21.

[0055] In the embodiment, the pushing elastic member 21 and the locking elastic member 33 are preferably springs.

[0056] In the embodiment, a positioning groove 20 is arranged on the upper clamp 13, and a positioning block 400 is arranged on the plug 40 of the forward movable jaw 41 and the reverse movable jaw 43.

[0057]

[0058] ​The gun type bone rong provided by the utility model, compared with prior art, the replaceable clamping part 4 makes it only need two or three clamp body 1 to cooperate with multiple clamping parts 4 to reach the use demand, effectively reduces the space occupied by multiple specifications of bone rong; when needing to replace the clamping part 4, the user only needs to move the swing lever 39 to make the upper marble 34 and the lower marble 37 rotate a certain angle, and the rotating unlocking block 35 will push away the lock catch 30, so that the clamping part 4 can be pushed out by the elastic element 21; when needing to install, the user only needs to directly insert the clamping part 4 into the slot 2.

[0059] In the case of no conflict, the above-mentioned embodiments and features in the embodiments can be combined with each other.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, and are not limited to the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the utility model can be modified or replaced equivalently without departing from the essence and scope of the technical solutions of the utility model.

Claims

1. A rongeur comprising a forceps body (1), characterized in that: The clamp body (1) comprises a handle (10), a trigger (11), an upper clamp (13) and a lower clamp (12), the handle (10) is fixedly connected with the lower clamp (12), the trigger (11) is hingedly connected in the lower clamp (12) and the trigger (11) is in transmission connection with the upper clamp (13), the upper clamp (13) is slidably connected with the lower clamp (12), and the upper clamp (13) and the lower clamp (12) are provided with a slot (2) at the ends, and the slot (2) is used for mounting a detachable clamping part (4); A quick release assembly (3) is arranged near the slot (2), the quick release assembly (3) comprises a lock catch (30), a locking elastic element (33), a swing rod (39), an upper marble (34), a lower marble (37) and an unlocking block (35), locking cavities are arranged in the upper clamp (13) and the lower clamp (12), two lock catches (30) are arranged in each set of locking cavities, one end of the lock catch (30) is provided with a lock tongue (31), the other end is provided with a baffle (32), and the locking elastic element (33) is arranged between the two baffles (32); the upper marble (34) is connected with the lower marble (37), the upper marble (34) is arranged in the upper clamp (13), and the unlocking block (35) is arranged on the upper marble (34); the lower marble (37) is arranged in the lower clamp (12), the unlocking block (35) is also arranged on the lower marble (37), and the lower marble (37) is connected with the swing rod (39).

2. The rongeur according to claim 1, wherein: The upper marble (34) is provided with a groove (36), the lower marble (37) is provided with a protruding block (38), the protruding block (38) is matched with the groove (36), and the upper clamp (13) is provided with a locking groove (132), the cross section of the locking groove (132) is consistent with the cross section of the groove (36).

3. The rongeur according to claim 1, wherein: The trigger (11) is hingedly connected to the lower clamp (12) through a hinge rod (110), and the hinge rod (110) is provided with a gland (112) at both ends; one end of the trigger (11) is provided with a swing groove (111), the upper clamp (13) is provided with a bolt (130), and the bolt (130) can abut against the swing groove (111).

4. The rongeur according to claim 1, wherein: The lower clamp (12) is provided with a sliding groove (120), the upper clamp (13) is provided with a sliding block (131), the sliding block (131) can slide in the sliding groove (120), and the sliding groove (120) is provided with an opening (121) at one end; the handle (10) is provided with a spring piece (14), and one end of the spring piece (14) abuts against the trigger (11).

5. The rongeur according to claim 1, wherein: The clamping part (4) comprises a forward fixed clamp (42) and a forward movable clamp (41), the forward fixed clamp (42) and the forward movable clamp (41) are provided with a clamp opening at one end and a plug (40) at the other end; the forward fixed clamp (42) and the forward movable clamp (41) are slidably connected; the forward fixed clamp (42) is connected with the lower clamp (12), and the forward movable clamp (41) is connected with the upper clamp (13).

6. The rongeur according to claim 1, wherein: The clamping part (4) comprises a reverse fixed jaw (44) and a reverse movable jaw (43), the reverse fixed jaw (44) and the reverse movable jaw (43) are provided with a jaw at one end and a plug (40) at the other end; the reverse fixed jaw (44) is provided with a sliding groove, and the reverse movable jaw (43) is provided with a sliding pin capable of sliding in the sliding groove; the reverse fixed jaw (44) is connected with the lower clamp jaw (12), and the reverse movable jaw (43) is connected with the upper clamp jaw (13).

7. A rongeur according to claim 5 or 6, wherein: The plug (40) is matched with the insertion slot (2), the plug (40) is provided with a clamping groove (401) and a limiting plate (402), the clamping groove (401) is matched with the lock tongue (31), the limiting plate (402) is arranged on both sides of the plug (40), and the lengths of the limiting plates (402) on both sides of the plug (40) are different.

8. The rongeur according to claim 1, wherein: A pushing elastic member (21) is arranged in the insertion slot (2).

9. The rongeur according to claim 7, wherein: A positioning groove (20) is arranged on the upper clamp jaw (13), and a positioning block (400) is arranged on the plug (40) of the forward movable jaw (41) and the reverse movable jaw (43).

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