Holder convenient for taking out elastic intramedullary nail
Baseders including blessing heads, grip and restrictions are designed, and the structure of fixed tube, clamping department, stripping slices, rubber cases, and cushioning airbags is used to solve the problem of difficulty removal in the elastic marrow nails and achieved it. Stable clamping and reducing the effect of hand vibration.
Patent Information
- Application Number
- CN202420922066.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-29
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-04-29
AI Technical Summary
When removing the elastic intramedullary nail, some intramedullary needles are tightly applied to the bone surface, which is difficult to remove conventional blessing devices. At the same time, when taking the intramedullary needle, it requires a sliding hammer to hit, resulting in a large shock force in the hand and affecting the stability of the operation.
Design a blessing device that includes a blessing head, grip, and limit part, through the structure of fixing tube, clamping department, peeling tablets, rubber cases, and buffer airbags to achieve stable clamping and pulling out of the intramuscopic nails. And reduce hand vibration through the buffer structure.
It effectively solves the difficulty removal problem caused by the tightly applied intramuscular needle and bone surface, reduces the vibration force during sliding hammer hammer, protects the operator's hand, and ensures the stability of the removal process.
Smart Images
Figure CN222398723U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical instruments, in particular to a holder for facilitating the removal of an elastic intramedullary nail. Background Art
[0002] Elastic intramedullary nail is a commonly used internal fixation device for treating long bone fractures in children. Its English abbreviation is ESI N. Its advantages include: minimally invasive; sufficient stability for activities and partial weight-bearing; more suitable for transverse, short oblique, and short spiral fractures of children's long bones in terms of physiological and clinical adaptability; it can perform biological minimally invasive fixation on fractures in children of appropriate age and achieve relatively satisfactory reduction and fixation.
[0003] Elastic intramedullary nails are widely used in children's fractures, and a second surgery is required to remove the elastic intramedullary nail after the fracture heals.
[0004] At present, in the process of removing intramedullary nails, some intramedullary nails are closely attached to the bone surface, and conventional intramedullary nail holders are difficult to remove. At the same time, a sliding hammer is required to hammer when removing the intramedullary nail, which causes a large vibration force on the hand. Therefore, it is necessary to propose a holder that is easy to remove elastic intramedullary nails to solve the above-mentioned problems. Utility Model Content
[0005] The purpose of the utility model is to provide a holder for facilitating the removal of an elastic intramedullary nail, which has the function of fitting the stripped bone surface with the intramedullary nail, thereby facilitating the intramedullary nail to be clamped and stably pulled outward for removal; secondly, the vibration force of hammering can be reduced, thereby protecting the operator's hands and avoiding the problem that long-term vibration of the hands affects subsequent stable operation.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a holder for facilitating the removal of an elastic intramedullary nail, comprising a holder consisting of a holder head, a grip and a limiter, a fixing tube being installed on the left upper end face of the holding head, a fixing part being fixedly connected to the lower end face of the fixing tube with a fixing part being threadedly connected to the holding head, a cavity being opened on the upper part of the fixing tube, two clamping parts being arranged opposite to each other being installed inside the cavity, teeth being arranged on the upper part of the opposite sides of the two clamping parts, and a stripping sheet being fixedly connected to the outer wall of the fixing tube via a connecting column;
[0007] A buffer plate is arranged on the outer side of the limiting part, a plurality of buffer air bags are installed between the inner wall of the buffer plate and the limiting part, and rubber sleeves are detachably connected to the left and right sides of the outer wall of the handle.
[0008] In order to stably clamp the intramedullary nail, as a preferred holder of the utility model for facilitating the removal of the elastic intramedullary nail, both left and right sides of the fixing tube are threadedly connected with screws movably connected to the clamping part.
[0009] In order to better separate the intramedullary nail from the bone surface, as a preferred holder for facilitating the removal of the elastic intramedullary nail of the utility model, both left and right ends of the stripping sheet are inclined structures.
[0010] In order to reduce the impact force when the slide hammer hits the handle, as a preferred holder for facilitating the removal of the elastic intramedullary nail of the utility model, a plurality of buffer grooves are provided on the outer wall of the rubber sleeve.
[0011] In order to protect the operator's hands, as a preferred holder for facilitating the removal of the elastic intramedullary nail of the utility model, a buffer pad is fixedly connected to the outer wall of the buffer plate.
[0012] In order to better fit with the intramedullary nail, as a preferred holder for facilitating the removal of the elastic intramedullary nail of the utility model, the two clamping parts are both in an arc-shaped structure.
[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0014] The utility model firstly enables two clamping parts to clamp the intramedullary nail, and the teeth can improve the stability of the clamping parts in clamping the intramedullary nail, and then the stripping sheet is used to strip the bone surface and the intramedullary nail from the fitting position, so that the intramedullary nail can be clamped and pulled outward for removal, and when the slide hammer hits the lower end of the handle, the vibration force of the hammer is reduced by the rubber sleeve, so that the long-term vibration of the hand can be avoided to affect the subsequent stable operation, and at the same time, the impact force of the slide hammer can be further buffered by the buffer plate and the buffer airbag, so as to protect the operator's hand. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is the overall structure diagram of the utility model;
[0016] Figure 2 This is a three-dimensional structural diagram of the fixed cylinder of the utility model;
[0017] Figure 3 This is a cross-sectional structural diagram of the fixed tube of the utility model;
[0018] Figure 4 This is a structural diagram of the limiting part of the utility model.
[0019] In the figure: 1. holder; 101. holder head; 102. handle; 103. limit part; 2. buffer plate; 201. buffer pad; 202. buffer airbag; 3. rubber sleeve; 4. fixing tube; 401. installation part; 402. cavity; 403. clamping part; 404. screw; 405. teeth; 5. peeling sheet. DETAILED DESCRIPTION
[0020] See also Figures 1 to 4A holder for facilitating the removal of an elastic intramedullary nail, comprising a holder 1 consisting of a holder head 101, a grip 102 and a limit portion 103, a fixing tube 4 is installed on the left upper end surface of the holding head 101, a mounting portion 401 threadedly connected to the holding head 101 is fixedly connected to the lower end surface of the fixing tube 4, a cavity 402 is opened on the upper part of the fixing tube 4, two clamping portions 403 arranged opposite to each other are installed in the cavity 402, teeth 405 are arranged on the upper part of the opposite side of the two clamping portions 403, and a stripping sheet 5 is fixedly connected to the outer wall of the fixing tube 4 through a connecting column;
[0021] A buffer plate 2 is arranged outside the limiting portion 103 , a plurality of buffer air bags 202 are installed between the inner wall of the buffer plate 2 and the limiting portion 103 , and rubber sleeves 3 are detachably connected to the left and right sides of the outer wall of the handle 102 .
[0022] In this embodiment, when the intramedullary nail needs to be removed, when the intramedullary nail is in contact with the bone surface, the fixing tube 4 is threadedly connected to the holding head 101, and the distance between the two clamping parts 403 can be adjusted first to make the two clamping parts 403 match the size of the intramedullary nail, and the intramedullary nail is clamped, and the stability of the clamping part 403 on the intramedullary nail can be improved by the teeth 405, and then the contact position between the bone surface and the intramedullary nail is peeled off by the peeling sheet 5, so as to facilitate the clamping of the intramedullary nail and pull it outward to remove it, and by cooperating The sliding hammer hits the handle 102 to remove the intramedullary nail. When the sliding hammer hits the lower end of the handle 102, a large vibration force will be generated. Because the operator's hand fits against the side wall of the handle 102, and the hand overlaps the limiting part 103, the hand will generate a large vibration force. The vibration force of the hammer can be reduced by the rubber sleeve 3 to avoid long-term vibration of the hand affecting the subsequent stable operation. At the same time, the buffer plate 2 and the buffer airbag 202 can further buffer the impact force of the sliding hammer and protect the operator's hand.
[0023] As a technical optimization solution of the present invention, both left and right sides of the fixing tube 4 are threadedly connected with screw rods 404 movably connected to the clamping portion 403 .
[0024] In this embodiment, the screw rod 404 is rotated to push the two clamping parts 403 closer to each other, thereby stably clamping the intramedullary nail.
[0025] As a technical optimization solution of the present invention, both left and right ends of the peeling sheet 5 are inclined structures.
[0026] In this embodiment, the left and right ends of the stripping sheet 5 are inclined to better separate the intramedullary nail from the bone surface.
[0027] As a technical optimization solution of the present utility model, a plurality of buffer grooves are provided on the outer wall of the rubber sleeve 3 .
[0028] In this embodiment, the impact force when the slide hammer strikes the handle 102 can be reduced by a plurality of buffer grooves, thereby reducing the vibration force on the hand.
[0029] As a technical optimization solution of the present invention, a buffer pad 201 is fixedly connected to the outer wall of the buffer plate 2 .
[0030] In this embodiment, the operator's hands can be further protected by the buffer pad 201 .
[0031] As a technical optimization solution of the present invention, the two clamping parts 403 are both in an arc-shaped structure.
[0032] In this embodiment, the clamping portion 403 is in an arc-shaped structure so as to better fit with the intramedullary nail.
[0033] Working principle: First, when the intramedullary nail needs to be removed, when the intramedullary nail is in contact with the bone surface, the fixing tube 4 is threadedly connected to the holding head 101, and the fixing tube 4 can be disassembled and replaced at the same time. The distance between the two clamping parts 403 can be adjusted first to make the two clamping parts 403 match the size of the intramedullary nail, and the intramedullary nail can be clamped. The teeth 405 can improve the stability of the clamping part 403 on the intramedullary nail, and then the stripping sheet 5 is used to strip the contact position between the bone surface and the intramedullary nail, so as to facilitate the clamping of the intramedullary nail and pull it outward to remove it. The intramedullary nail is taken out by hammering the handle 102 with a sliding hammer. When the sliding hammer hits the lower end of the handle 102, a large vibration force is generated. Because the operator's hand fits against the side wall of the handle 102 and the hand overlaps the limiting portion 103, a large vibration force is generated on the hand. The vibration force of the hammer can be reduced by the rubber sleeve 3 to avoid long-term vibration of the hand affecting the subsequent stable operation. At the same time, the buffer plate 2 and the buffer airbag 202 can further buffer the impact force of the sliding hammer and protect the operator's hand.
[0034] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A holder for facilitating the removal of an elastic intramedullary nail, comprising a holder (1) consisting of a holder head (101), a handle (102) and a limiter (103), characterized in that: A fixing cylinder (4) is installed on the upper left end surface of the holding head (101); a mounting portion (401) threadedly connected to the holding head (101) is fixedly connected to the lower end surface of the fixing cylinder (4); a cavity (402) is provided on the upper part of the fixing cylinder (4); two clamping portions (403) arranged opposite to each other are installed inside the cavity (402); teeth (405) are provided on the upper parts of opposite sides of the two clamping portions (403); and a peeling sheet (5) is fixedly connected to the outer wall of the fixing cylinder (4) via a connecting column; A buffer plate (2) is arranged on the outer side of the limiting portion (103), a plurality of buffer air bags (202) are installed between the inner wall of the buffer plate (2) and the limiting portion (103), and rubber sleeves (3) are detachably connected to the left and right sides of the outer wall of the handle (102).
2. A holder for facilitating the removal of an elastic intramedullary nail according to claim 1, characterized in that: The left and right sides of the fixed cylinder (4) are both threadedly connected with screw rods (404) that are movably connected to the clamping portion (403).
3. The holder for facilitating the removal of an elastic intramedullary nail according to claim 1, characterized in that: The left and right ends of the peeling sheet (5) are both inclined structures.
4. The holder for facilitating the removal of an elastic intramedullary nail according to claim 1, characterized in that: The outer wall of the rubber sleeve (3) is provided with a plurality of buffer grooves.
5. The holder for facilitating the removal of an elastic intramedullary nail according to claim 1, characterized in that: A buffer pad (201) is fixedly connected to the outer wall of the buffer plate (2).
6. The holder for facilitating the removal of an elastic intramedullary nail according to claim 1, characterized in that: The two clamping parts (403) are both in an arc-shaped structure.