CN214857363U

CN214857363U - Three-jaw bone holder

Info

Publication number: CN214857363U
Application number: CN202120915837.4U
Authority: CN
Inventors: 白福贵; 巴虎山; 韩铁龙; 金爱华; 巧云; 赵凯
Original assignee: Inner Mongolia Autonomous Region International Mongolian Medical Hospital (institute Of Mongolian Medicine Inner Mongolia Autonomous Region)
Current assignee: Inner Mongolia Autonomous Region International Mongolian Medical Hospital (institute Of Mongolian Medicine Inner Mongolia Autonomous Region)
Priority date: 2021-04-29
Filing date: 2021-04-29
Publication date: 2021-11-26
Anticipated expiration: 2031-04-29

Abstract

The utility model relates to the field of medical equipment, especially, relate to a three-jaw bone holder. The three-jaw bone holder comprises a first handle and a second handle, wherein the first handle is movably connected with two jaw ends, the second handle is integrally connected with a single jaw, and a threaded sleeve rod assembly is arranged between the first handle and the second handle. The double-claw end comprises a connecting block and two same bent claws, the connecting block is integrally connected with the first handle, two T-shaped grooves are formed in the connecting block, bolts are arranged in the T-shaped grooves, and the lower ends of the bolts penetrate through the lower end face of the connecting block to be in threaded connection with the bent claws. The threaded sleeve rod comprises a sleeve, a screw rod and a locking sleeve, the lower end of the sleeve is hinged to the inner wall of the second handle, the screw rod is sleeved in the sleeve, the other end of the screw rod is hinged to the inner wall of the first handle, and the locking sleeve is arranged on the sleeve and the screw rod in a threaded mode. The novel bone holder is convenient to use and is suitable for small bones with different lengths.

Description

Three-jaw bone holder

Technical Field

The utility model relates to the field of medical equipment, especially, relate to a three-jaw bone holder.

Background

The bone holder is used for being used for as orthopedic surgery's medical instrument, and the patient is used for the bone to reset when carrying out orthopedic surgery, and when current three-jaw bone holder used, because two claw position fixation of two claw ends can not snatch totally to the bone that length is shorter, and is extremely inconvenient during the use, and the handle of bone holder must only realize the closure of three-jaw through the hand in addition, and then the realization that stabilizes more snatchs the bone.

SUMMERY OF THE UTILITY MODEL

In view of the above existing problems, the present invention aims to provide a three-jaw bone holder, which can adjust the distance between two curved jaws, and is further adapted to bones with different lengths, and is provided with a threaded sleeve rod assembly with a spring, and can combine two handles by the contraction characteristic of the spring after the bones are grabbed, thereby reducing the workload of closing the handles by force of a doctor.

In order to achieve the above object, the utility model adopts the following technical scheme:

the utility model provides a three-jaw bone holder, includes first handle and second handle, first handle and second handle are articulated through the round pin axle, first handle swing joint has two claw ends, second handle an organic whole is connected with single claw, be provided with screw thread loop bar subassembly between first handle and the second handle.

Preferably, the double-claw end comprises a connecting block and two same bent claws, the connecting block is integrally connected with the first handle, two T-shaped grooves penetrating through the upper end face and the lower end face of the connecting block are formed in the connecting block, bolts are arranged in the T-shaped grooves, and the lower ends of the bolts penetrate through the lower end face of the connecting block and are in threaded connection with the bent claws.

Preferably, the threaded sleeve rod assembly comprises a sleeve, a screw rod and a locking sleeve, the lower end of the sleeve is hinged to the inner wall of the second handle, the screw rod is sleeved in the sleeve, the other end of the screw rod is hinged to the inner wall of the first handle, and the locking sleeve is arranged on the sleeve and the screw rod in a threaded mode.

Preferably, the outer walls of the sleeve and the screw rod are provided with external threads in the same direction, the locking sleeve is formed by integrally forming an upper barrel and a lower barrel, the upper barrel is sleeved on the screw rod, the external threads of the inner wall matched with the screw rod are provided with internal threads, the lower barrel can be sleeved on the sleeve, and the external threads of the inner wall matched with the sleeve are provided with internal threads.

Preferably, the end part of the screw rod, which is located in the sleeve, is provided with a limiting block, the inner wall of the upper end of the sleeve is provided with a limiting ring, and the inner diameter of the limiting ring is smaller than the outer diameter of the limiting block.

Preferably, the lower end face of the limiting block is connected with a spring, and the other end of the spring is connected to the inner bottom face of the sleeve.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the two bent claws are adjustably arranged on the connecting block, so that the distance between the two bent claws can be adjusted, the adjustable bent claw is suitable for different lengths of bones, and the adjustable bent claw has higher adaptability;

2. be provided with the screw sleeve pole subassembly of taking the spring, can play spacing effect on the one hand, prevent rocking of handle, on the other hand can be through the spring with two handle tractive in opposite directions, strength when reducing the doctor and snatching.

3. Be provided with the retaining member, and set up between two handles, can avoid the conventionality to set up and cause the influence in the handle outside to doctor's operation.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

fig. 1 is a structural diagram of the present invention.

Fig. 2 is a top view of the connecting block of the present invention.

Fig. 3 is a cross-sectional view of the connecting block of the present invention.

Fig. 4 is a cross-sectional view of the threaded shank assembly of the present invention.

Wherein: 1. the novel handle comprises a first handle, 2, a second handle, 3, a single claw, 4, a bent claw, 5, a pin shaft, 6, a connecting block, 7, a sleeve, 8, a screw, 9, a locking sleeve, 901, an upper barrel, 902, a lower barrel, 10, a T-shaped groove, 11, a bolt, 12, a threaded hole, 13, a spring, 14, a limiting ring and 15, a limiting block.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example (b):

referring to the attached drawings 1-4, the three-jaw bone holder comprises a first handle 1 and a second handle 2, wherein the first handle 1 and the second handle 2 are hinged through a pin shaft 5, the first handle 1 is movably connected with a double-jaw end, the second handle 2 is integrally connected with a single jaw 3, and a threaded sleeve rod assembly is arranged between the first handle 1 and the second handle 2.

The double-claw end comprises a connecting block 6 and two same bent claws 4, the connecting block 6 and the first handle 1 are integrally formed, two T-shaped grooves 10 penetrating through the upper end surface and the lower end surface of the connecting block 6 are formed in the connecting block 6, bolts 11 are arranged in the T-shaped grooves 10, threaded holes are formed in the upper end surface of the bent claws 4, the lower ends of the bolts 11 penetrate out of the lower end surface of the connecting block 6 and are screwed into threaded holes of the bent claws 4, then the bent claws 4 are fixedly connected, when the position of the bent claws 4 needs to be adjusted, the bolts 11 are unscrewed, the bent claws 4 slide to a proper position, and then the bent claws are screwed again.

The threaded sleeve rod assembly comprises a sleeve 7, a screw rod 8 and a locking sleeve 9, the lower end of the sleeve 7 is hinged to the inner wall of the second handle 2, the screw rod 8 is sleeved in the sleeve 7, the other end of the screw rod is hinged to the inner wall of the first handle 1, and the locking sleeve 9 is arranged on the sleeve 7 and the screw rod 8 in a threaded mode.

The outer wall of the upper end of the sleeve 7 is provided with an external thread, the outer wall of the screw 8 is provided with an external thread, the external threads of the sleeve 7 and the screw 8 are in the same direction, the locking sleeve 9 is integrally formed by an upper barrel 901 and a lower barrel 902, the upper barrel 901 is sleeved on the screw 8, the external thread of the inner wall matched with the screw 8 is provided with an internal thread, the lower barrel 902 can be sleeved on the sleeve 7, and the external thread of the inner wall matched with the sleeve 7 is provided with an internal thread. After the screw rod 8 moves to a proper position, the locking sleeve 9 is rotated and connected with the upper sleeve 7, so that the sleeve 7 and the screw rod 8 can be fixed, and the first handle 1 and the second handle 2 are further fixed.

The tip that the screw rod 8 is located sleeve 7 is provided with stopper 15, the upper end inner wall of sleeve 7 is provided with spacing ring 14, the internal diameter of spacing ring 14 is less than stopper 15's external diameter, can prevent that screw rod 8 from deviating from sleeve 7.

The lower end face of the limiting block 15 is connected with a spring 13, the other end of the spring 13 is connected to the inner bottom face of the sleeve 7, and the spring 13 is a compression spring. When the handle is used, the screw rod 8 can be pulled into the sleeve 7 by the compression spring, so that the force of a doctor when the handle is held tightly is reduced, the workload of the doctor is relieved, and meanwhile, the locking sleeve 9 can be directly and quickly rotated to be locked after the spring is pulled in place.

The utility model discloses a principle and use flow:

when the fixing device is used, the bolt 11 is unscrewed, the bent claw 4 is slid to a proper position, and then the bolt 11 is screwed to fix the bent claw 4.

Then, the bone holder grabs the bone, under the effect of spring 13, first handle 1 and second handle 2 are close to each other, and the doctor rotates locking collar 9 and accomplishes the fixed to sleeve 7 and screw rod 8 after gripping, and then realizes the fixed to first handle 1 and second handle 2. Then the bone-knitting head is placed at a proper position, and the subsequent operation is completed. The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a three-jaw bone holder, includes first handle (1) and second handle (2), first handle (1) and second handle (2) are articulated through round pin axle (5), its characterized in that: the improved handle is characterized in that the first handle (1) is movably connected with double-claw ends, the second handle (2) is integrally connected with a single claw (3), and a threaded sleeve rod assembly is connected between the first handle (1) and the second handle (2).

2. A three-jaw bone holder according to claim 1, characterized in that: the double-claw end comprises a connecting block (6) and two same bent claws (4), the connecting block (6) is integrally connected with the first handle (1), two T-shaped grooves (10) penetrating through the upper end surface and the lower end surface of the connecting block (6) are formed in the connecting block (6), bolts (11) are arranged in the T-shaped grooves (10), and the lower ends of the bolts (11) penetrate out of the lower end surface of the connecting block (6) and are in threaded connection with the bent claws (4).

3. A three-jaw bone holder according to claim 2, characterized in that: the threaded sleeve rod assembly comprises a sleeve (7), a screw rod (8) and a locking sleeve (9), the lower end of the sleeve (7) is hinged to the inner wall of the second handle (2), the screw rod (8) is sleeved in the sleeve (7), the other end of the screw rod is hinged to the inner wall of the first handle (1), and the locking sleeve (9) is arranged on the sleeve (7) and the screw rod (8) in a threaded mode.

4. A three-jaw bone holder according to claim 3, characterized in that: the outer walls of the sleeve (7) and the screw (8) are provided with external threads in the same direction, the locking sleeve (9) is formed by integrally forming an upper barrel (901) and a lower barrel (902), the upper barrel (901) is sleeved on the screw (8), the internal threads are formed on the external threads of the inner wall matched with the screw (8), the lower barrel (902) can be sleeved on the sleeve (7), and the internal threads are formed on the external threads of the inner wall matched with the sleeve (7).

5. A three-jaw bone holder according to claim 4, characterized in that: the end part of the screw rod (8) located in the sleeve (7) is provided with a limiting block (15), the inner wall of the upper end of the sleeve (7) is provided with a limiting ring (14), and the inner diameter of the limiting ring (14) is smaller than the outer diameter of the limiting block (15).

6. A three-jaw bone holder according to claim 4, characterized in that: the lower end face of the limiting block (15) is connected with a spring (13), and the other end of the spring (13) is connected to the inner bottom face of the sleeve (7).