CN218739105U

CN218739105U - Fracture piece holder

Info

Publication number: CN218739105U
Application number: CN202221921242.0U
Authority: CN
Inventors: 孔祥如
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-07-25
Filing date: 2022-07-25
Publication date: 2023-03-28
Anticipated expiration: 2032-07-25

Abstract

The utility model discloses a fracture piece holder, include: handle, bone circle needle fixedly connected with spliced pole on the handle installs the connector on the spliced pole, and connector and bone circle needle one end are passed through the plug mode and are connected, and the bone circle needle other end is provided with tapping head, is provided with the tapping screw thread on the tapping head. The utility model discloses it is also exactly that tapping screw-thread fit tapping groove design to accomodate bone round needle the place ahead point portion, and the holder of being convenient for gets into the bone piece, and the helicitic texture is deepened by shallow income from near-end to distal end pitch, and it is bigger to control the dynamics to the fracture piece, is convenient for carry and draws fracture piece that resets.

Description

Fracture piece holder

Technical Field

The utility model relates to the technical field of medical surgical instruments, in particular to a fracture block holder.

Background

Bone fracture is the most common bone injury disease in orthopedics department, and is mostly caused by violence of different degrees. The bone fractures are classified into simple fractures and comminuted fractures according to their degree of injury. The latter has more fracture pieces, the displacement of fracture pieces at the fracture end is obvious and irregular, and a plurality of patients with comminuted fracture need hospitalization operation. The purpose of fracture treatment is to achieve good reduction, strong and firm internal fixation on the basis of protecting local internal environment of fracture and reducing further damage of local blood circulation, thereby achieving early functional exercise and restoring limb functions. Fracture reduction and fixation are the core content of fracture surgery treatment. The healing of the fracture is mainly beneficial to the creeping replacement of bone tissues after the fracture block is reset and fixed, the reconstruction of the anatomical structure of bones and the recovery of the physiological function of the fracture part. The most difficult operation of comminuted fracture lies in the reduction of the fracture pieces, because each fracture has a different shape, but each fracture piece has its own position, and the reduction must be restored to the original position to actually realize the anatomical reduction. Particularly, comminuted fracture of joint parts such as complicated pelvis and acetabulum fracture needs to achieve anatomical reduction of fracture blocks, and the fracture blocks are difficult to hold during reduction due to deep fracture positions and irregular shapes, so that the reduction of the fracture blocks is difficult to realize. I have tried to drive into a fracture using a bone pin for holding, and indeed have achieved good results with smaller free fracture pieces. However, for larger fracture pieces, the strength is weak by using the bone round needle, and the aim of satisfying the fracture cannot be achieved. Because the bone round needle is thin and the far end is smooth, the bone round needle is easy to bend and deform when the fracture block is dragged to reset, and is also easy to pull out and fall off from the fracture block, repeated drilling can also break the bone block into more pieces, so that the bone fracture block becomes more complex fracture, and the bone fracture block with muscle, ligament and joint capsule attachment is more so, so that great inconvenience is brought to clinical work. Sometimes we also use a round bone needle with a thread at the distal end, although there is some stress during longitudinal lifting, the force during transverse traction is not satisfactory, and it is difficult to change the direction of the fracture by rotation.

Disclosure of Invention

Technical problem to be solved

The utility model discloses a solve these problems, utility model designs a fracture piece holder with screw thread and limited depth.

(II) technical scheme

In order to solve the above problem, the utility model provides a following technical scheme:

a fracture block holder, comprising: handle, bone circle needle fixedly connected with spliced pole on the handle, install the connector on the spliced pole, connector and bone circle needle one end are connected through the plug mode, and the bone circle needle other end is provided with tapping head, is provided with the tapping screw thread on the tapping head.

As the preferable scheme of the previous step, a connecting block in sliding connection is sleeved on the connecting column, and the connecting block is connected with the inner wall of the connecting head in a threaded mode.

As the preferable scheme of the previous step, the top end of the connecting column is fixedly connected with a second limiting baffle, a connecting pipe is fixedly connected to the second limiting baffle, and the connecting pipe is used for accommodating one end of the bone round needle.

As the preferable scheme of the previous step, a counter bore is formed in the outer wall of the connecting pipe, an anastomotic clamping ball is arranged in the counter bore, and the clamping ball is matched with a clamping groove formed in one end of the bone round needle.

As the preferable scheme of the previous step, a spring is sleeved outside the connecting pipe, and the spring is used for preventing the clamping ball from sliding off from the counter bore on one hand and is used for supporting the connecting head on the other hand.

As the preferable scheme of the previous step, one end of the accommodating bone round needle is also provided with a positioning end face, and the positioning end face is matched with a positioning block arranged on the inner wall of the connector.

As the preferable scheme of the previous step, one end of the bone round needle is further provided with a first limiting blocking piece, and the first limiting blocking piece is arranged behind the tapping thread.

As a preferable scheme of the previous step, the tapping head is also provided with a tapping groove.

As the preferable scheme of the previous step, the bone round needles are multiple and have the length of 20-60 cm.

(III) advantageous effects

The beneficial effects of the utility model reside in that:

(1) The utility model discloses it is the design of tapping screw-thread fit tapping groove that the sharp portion in the bone round needle the place ahead of accomodating is self tapping design, and the holder of being convenient for gets into the bone piece, and the helicitic texture is deepened to distal end pitch by shallow income from the near-end, and it is bigger to control the dynamics to the fracture piece, is convenient for carry and draws the fracture piece that resets.

(2) The utility model discloses be swing joint between bone round needle and the handle, and have the specification of variation in size to be applicable to the not fracture piece of equidimension.

(3) The utility model discloses detachable handle and bone round needle can freely match according to the condition in the art, avoids the overlength short influence operation position to expose.

(4) The utility model discloses the bone circle needle front end is provided with discoid spacing separation blade structure and can restricts the tapping head and get into too deeply, harms deep tissue, like the reduction of pelvis acetabular fracture, still with the helicitic texture combined action, produces a friction stress at holder and fracture piece contact site, makes more inseparabler that holder and fracture piece are connected, and it is bigger to control the dynamics, is difficult for extracting in the operation process and drops, reduces the fracture piece and resets repeatedly, improves operation efficiency.

(5) The utility model discloses bone circle needle end sets up the location terminal surface, and the location terminal surface can prevent bone circle needle autogyration when boring the bone under the locating piece cooperation, increases and bores bone efficiency.

(6) The utility model also has the function of a mandril after the reduction of the fracture, and effectively maintains the position of the fracture block.

Drawings

FIG. 1 is a three-dimensional structure of the present invention;

FIG. 2 is a three-dimensional structure diagram of the osseous pin of the present invention;

FIG. 3 is an enlarged view of one end of the needle of the bone round needle of the present invention;

FIG. 4 is an enlarged view of the other end of the needle of the bone round needle of the present invention;

FIG. 5 is a view showing the structure of the handle of the present invention;

FIG. 6 is a connection diagram of the connector of the present invention;

FIG. 7 is an enlarged view of a portion of FIG. 6 according to the present invention;

wherein: 1. the device comprises a handle, 11, a connecting column, 12, a connector, 13, a positioning block, 14, a connecting block, 15, a second limiting blocking piece, 16, a spring, 17, a connecting pipe, 18, a clamping ball, 19 and a counter bore; 2. the bone round needle comprises a bone round needle body 21, a connecting end 22, a tapping thread 23, a positioning end face 24, a clamping groove 25, a tapping thread 26, a tapping groove 27 and a first limiting blocking piece.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and the described embodiments are only some embodiments, not all embodiments, of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example (b):

referring to fig. 1 to 3, the handle 1 of the present invention is fixedly connected with a connecting column 11, one end of the connecting column 11 is fixed inside the handle 1, the other end of the connecting column 11 is provided with a connector 12, the connector 12 is used for fixing one end of the needle 2, namely, the connecting end 21, so as to facilitate the bone drilling operation of the other end of the needle 2; for conveniently boring bone, the utility model discloses a 2 other ends of bone round needle set up to the tapping head 22 of self-tapping structure, also be provided with tapping screw 25 and tapping groove 26 on tapping head 22 exactly, in order to prevent that the tapping degree of depth is too much, still be provided with first spacing separation blade 27 at the rear of tapping head 22, first spacing separation blade 27 is through welding or integrated into one piece design on bone round needle 2.

Referring to fig. 4 to 7, the utility model discloses a be provided with location terminal surface 23 and draw-in groove 24 on the needle 2 link 21 of bone circle, wherein, location terminal surface 23 and the locating piece 13 of setting on the inner wall of connector 12 mutually support, locating piece 13 carries out spacing preventing that needle 2 of bone circle from rotating in connector 12 with link 21, in order to prevent needle 2 of bone circle from sliding out in the connector, the utility model discloses still set up round draw-in groove 24 on link 21, draw-in groove 24 and calorie ball 18 mutually support, calorie ball 18 sets up in the counter bore 19 of connecting pipe 17 one side, and the diameter ratio of calorie ball 18 is bigger than the wall thickness of connecting pipe 17 a little, so the inboard salient of calorie ball 18 just can cooperate with draw-in groove 24 in connecting pipe 17 inner wall, the outside of calorie ball 18 limits through spring 16, prevent calorie ball 18 from sliding off, in order to let calorie ball 18 carry out the removal of small distance again, like this calorie ball 18 and draw-in draw-off with draw-in groove 24, thereby draw out needle 2 of bone circle, the utility model discloses an inner diameter ratio connecting pipe 17 of back 12 should be bigger a little outside, 0.2-0.5mm, simultaneously more than the spring is less than about 0.5mm, thereby press the needle to press the upper end again, when the head, 18 is less than the removal of bone circle is less than the spring. Connecting pipe 17 is fixed on spliced pole 11's top, still add the spacing separation blade 15 of second in order to carry on spacingly between spliced pole 11 and connecting pipe 17, still the cover is equipped with a connecting block 14 on the spliced pole 11, connecting block 14 carries out restriction displacement distance between the spacing separation blade 15 of second and handle 1 through the spacing separation blade 15 of second, connecting block 14's outer wall is provided with the external screw thread and prevents to be connected with connector 12 lower extreme through the spiral, connector 12 can drive connecting block 14 and reciprocate on spliced pole 11. As shown in fig. 2, the osseous pin 2 of the utility model can be arranged into a plurality of pins, the length can be different, the thickness can be different, and the pins can be selected according to the requirement during the operation.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not to be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A bone fragment holder comprising: the bone round needle tapping machine comprises a handle (1) and a bone round needle (2), wherein a connecting column (11) is fixedly connected to the handle (1), a connector (12) is installed on the connecting column (11), the connector (12) is connected with one end of the bone round needle (2) in a plugging mode, a tapping head (22) is arranged at the other end of the bone round needle (2), and tapping threads (25) are arranged on the tapping head (22).

2. A fracture fragment holder as claimed in claim 1, wherein: the connecting column (11) is sleeved with a connecting block (14) in sliding connection, and the connecting block (14) is connected with the inner wall of the connecting head (12) in a threaded mode.

3. A fracture fragment holder as claimed in claim 2, wherein: the top end of the connecting column (11) is fixedly connected with a second limiting blocking piece (15), a connecting pipe (17) is fixedly connected onto the second limiting blocking piece (15), and the connecting pipe (17) is used for accommodating one end of the bone round needle (2).

4. A fracture fragment holder as claimed in claim 3, wherein: the outer wall of the connecting pipe (17) is provided with a counter bore (19), an anastomotic clamping ball (18) is arranged in the counter bore (19), and the clamping ball (18) is matched with a clamping groove (24) arranged at one end of the bone round needle (2).

5. A bone fragment holder as claimed in claim 4, wherein: the connecting pipe (17) is also sleeved with a spring (16), and the spring (16) is used for preventing the clamping ball (18) from sliding down from the counter bore (19) on one hand and is used for supporting the connector (12) on the other hand.

6. A fracture fragment holder as claimed in claim 1, wherein: one end of the bone round needle (2) is also provided with a positioning end face (23), and the positioning end face (23) is matched with a positioning block (13) arranged on the inner wall of the connector (12).

7. A bone fragment holder as claimed in claim 6 wherein: one end of the bone round needle (2) is also provided with a first limiting blocking piece (27), and the first limiting blocking piece (27) is arranged behind the tapping thread (25).

8. A fracture fragment holder as claimed in claim 1, wherein: the tapping head (22) is also provided with a tapping groove (26).

9. A bone fragment holder as claimed in claim 1 or 6, wherein: the bone round needles (2) are multiple and have the length of 20-60 cm.