CN219230095U - Guide device - Google Patents
Guide device Download PDFInfo
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- CN219230095U CN219230095U CN202222797052.9U CN202222797052U CN219230095U CN 219230095 U CN219230095 U CN 219230095U CN 202222797052 U CN202222797052 U CN 202222797052U CN 219230095 U CN219230095 U CN 219230095U
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- positioning shaft
- connecting sleeve
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- guide
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Abstract
The utility model belongs to the technical field of medical appliances, and particularly relates to a guide device; the left positioning shaft is a lower spherical hinge connected to the left foot proximal handle, a first connecting cylinder is arranged at the bottom of the left positioning shaft, the right foot proximal handle is connected with the left foot proximal handle through a shaft, the right foot proximal handle is sleeved in the connecting sleeve, the right positioning shaft is connected to the connecting sleeve through a spherical hinge, and a second connecting cylinder is fixed on the right positioning shaft; the connecting rod is sleeved in the connecting sleeve, and the connecting rod of the right foot proximal end handle is fastened in the connecting sleeve through the connecting screw rod; the present utility model acts as a guide wire or needle guide for inserting an implant into bone to treat a bone defect.
Description
Technical Field
The utility model belongs to the technical field of medical instruments, and particularly relates to a guide device.
Background
Implants or devices of various shapes and sizes are commonly used in modern medicine to repair bone defects, such as fractures; the physician typically places the bone to be repaired in the correct position and then fixes it with an implant or device for healing.
Navicular bone is the pivot of the wrist joint and is the main cause of the dysfunction of the wrist joint. The navicular fracture is very common clinically, accounts for 70% of the carpal fractures, is the fracture with the second highest incidence rate (secondary to the distal radius fracture) in the upper limb fracture, and is highly developed for people in the age of 20-30 years.
Traditional methods for treating navicular fracture often employ plaster braking and incision internal fixation procedures. The fracture of the fresh navicular bone without displacement can be healed by adopting a gypsum braking method, however, the braking time is as long as 12-16 weeks, which can lead to joint stiffness and influence the rehabilitation of hand and wrist functions. Moreover, prolonged gypsum braking is often unacceptable to those who are not wearing gypsum for work or young patients who enjoy some sports. While the other treatment method is to cut open the internal fixation operation to damage the ligament of the wrist joint, the operation needs to be prolonged for braking, the residual blood vessel is damaged, and the incidence rate of non-healing and ischemic necrosis is increased.
The minimally invasive navicular treatment firstly reports the clinical study of treating the fracture of the navicular bone of China by adopting a dorsal access percutaneous compression screw internal fixation method. The early curative effect and the satisfaction degree of patients are superior to the traditional method, but because the navicular position is hidden, the three-dimensional shape is complex, even a specialist with rich experience often needs to try for many times, the X-ray perspective is repeatedly performed to finish the operation, the lumbar region of the navicular and the near-extremely narrow space for placing the internal fixing screw is small, and the fault tolerance rate is low. The problem is even more pronounced with smaller navicular than with euler, where it is difficult to ensure accurate internal fixture orientation and angle with freehand manipulation of the guide pin, which can be aided by X-rays taken in the anterior-posterior and lateral planes before and after placement of the guide wire. Such operations require considerable skill and often involve one or more attempts before proper positioning is achieved. The difficulties often encountered in inserting and positioning a guidewire are caused by the slippery environment of the surgical procedure and the tendency of the thin guidewire to wobble and bend as it is inserted into position in the bone. The exact spatial location between these devices in the bone is critical to successful surgery.
In the past, guides designed to assist in positioning the guide wire have been plagued by sliding problems and difficulties in use with X-rays, both of which can extend the time of the surgical procedure, which is inconvenient to the patient and costly. Errors in a subject, including loading a guidewire into bone in the wrong location or in the wrong orientation relative to other hardware, may require insertion of additional guidewires to correct the error. These errors can damage bone that has been defective, leading to bone fragility, deepening of the bone injury, and poor healing.
Accordingly, there is a need in the art for a guide that addresses the sliding problem and that can ensure the correct spatial orientation of the hardware or device for fracture fixation.
Disclosure of Invention
In order to overcome the above problems, the present utility model provides a guide as a guide wire or a guide needle for inserting an implant into bone to treat a bone defect.
A guide comprising a left sight 1, a right sight 2 and a hinge shaft 3, wherein:
the left sight 1 comprises a left sight proximal end handle 105, a left positioning shaft 104 and a first connecting cylinder 101, wherein the left positioning shaft 104 is hollow and is connected to the top of the left sight proximal end handle 105, the bottom of the left positioning shaft 104 is fixedly provided with the first connecting cylinder 101, and a plurality of peripheral guide holes 102 parallel to the left positioning shaft 104 are arranged in the first connecting cylinder 101;
the right sight 2 comprises a second connecting cylinder 201, a right positioning shaft 204, a right sight proximal end handle 207 and a connecting sleeve 208, wherein the bottom of the right sight proximal end handle 207 is connected with the bottom of the left sight proximal end handle 105 through a hinge shaft 3, the distal end of the right sight proximal end handle 207 is sleeved in the connecting sleeve 208 through a connecting rod 2072, the sleeve 208 can slide up and down along the connecting rod 2072, the right positioning shaft 204 is hollow, the proximal end of the right positioning shaft 204 is connected with the distal end of the connecting sleeve 208 through a spherical hinge, the bottom of the right positioning shaft 204 is fixedly provided with the second connecting cylinder 201, and a plurality of peripheral guide drilling holes 202 parallel to the right positioning shaft 204 are arranged in the second connecting cylinder 201;
a through hole is formed in the connecting sleeve 208, a push plate 210 is arranged on one side of the inner wall of the through hole, the proximal handle 207 of the right sighting device comprises a handle body 2071, a connecting rod 2072 is fixed on the handle body 2071, a boss 209 is arranged at the top of the connecting rod 2072, the connecting rod 2072 is sleeved in the through hole of the connecting sleeve 208, and when the connecting sleeve 208 slides distally, the boss 209 can be matched with the push plate 210 on the inner wall of the connecting sleeve 208 to realize limiting; while the connecting rod 2072 of the right sight proximal handle 207 is secured within the connecting sleeve 208 by the connecting screw 206.
The connecting screw 206 penetrates into the connecting sleeve 208 through a threaded hole formed in the connecting sleeve 208, and contacts with the push plate 210.
The left positioning shaft 104 is hard-wired to a left sight proximal handle 105.
A ball head 212 is arranged below the right positioning shaft 204, a ball socket 211 is arranged at the top of the connecting sleeve 208, and the right positioning shaft 204 is connected in the ball socket 211 at the top of the connecting sleeve 208 in a matched manner through the ball head 212.
The handle body 2071 of the right sight proximal handle 207 is an L-shaped pole comprising a vertical long pole and a lateral short pole, wherein the lateral short pole is disposed above the vertical long pole and the connecting pole 2072 is fixed on the lateral short pole.
The top of the left positioning shaft 104 is provided with left teeth 103 for preventing directional slipping on the bone surface, and the top of the right positioning shaft 204 is provided with right teeth 203 for preventing directional slipping on the bone surface.
The utility model has the beneficial effects that:
the utility model can determine the fracture line position at one time, greatly shortens the operation time, and reduces the economic burden of patients caused by anesthesia time and the operation risk caused by long time; the fracture fixation of the navicular bones, the metatarsal bones and the like with complex shapes is simplified, and doctors with great experience are not needed, so that the operation is popularized.
The present utility model addresses the need for a properly spatially oriented guide for fracture fixation hardware or devices.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following description will briefly explain the drawings to be used in the description of the embodiments of the present utility model, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the contents of the embodiments of the present utility model and these drawings without inventive effort for those skilled in the art.
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a detailed structural schematic diagram of the present utility model.
FIG. 3 is a schematic view of the right foot proximal handle and connecting sleeve structure of the present utility model.
Fig. 4 is a schematic view of the right positioning shaft structure of the present utility model.
Fig. 5 is a schematic view of the right foot structure of the present utility model.
Fig. 6 is a schematic side view of the present utility model.
Wherein: left sight 1, first connecting barrel 101, peripheral guide hole 102, left tooth 103, left positioning shaft 104, left sight proximal handle 105, right sight 2, second connecting barrel 201, peripheral guide bore 202, right tooth 203, right positioning shaft 204, articulation 205, connecting screw 206, right sight proximal handle 207, handle body 2071, connecting rod 2072, connecting sleeve 208, boss 209, push plate 210, ball socket 211, ball head 212, articulation shaft 3.
Detailed Description
The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.
In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, rather than indicating or implying that the apparatus or elements herein referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.
Example 1
As shown in fig. 1 to 6, a guide includes a left sight 1, a right sight 2, and a hinge shaft 3, wherein:
the left sight 1 comprises a left sight proximal end handle 105, a left positioning shaft 104 and a first connecting cylinder 101, wherein the left positioning shaft 104 is hollow and is connected to the top of the left sight proximal end handle 105, the bottom of the left positioning shaft 104 is fixedly provided with the first connecting cylinder 101, and a plurality of peripheral guide holes 102 parallel to the left positioning shaft 104 are arranged in the first connecting cylinder 101;
the right sight 2 comprises a second connecting cylinder 201, a right positioning shaft 204, a right sight proximal end handle 207 and a connecting sleeve 208, wherein the bottom of the right sight proximal end handle 207 is connected with the bottom of the left sight proximal end handle 105 through a hinge shaft 3, the distal end of the right sight proximal end handle 207 is sleeved in the connecting sleeve 208 and can slide up and down in the connecting sleeve 208, the right positioning shaft 204 is hollow, the proximal end of the right positioning shaft 204 is connected with the distal end of the connecting sleeve 208 through a spherical hinge, the bottom of the right positioning shaft 204 is fixedly provided with the second connecting cylinder 201, and a plurality of peripheral guide drilling holes 202 parallel to the right positioning shaft 204 are arranged in the second connecting cylinder 201;
a through hole is formed in the connecting sleeve 208, a push plate 210 is arranged on one side of the inner wall of the through hole, the proximal handle 207 of the right sighting device comprises a handle body 2071, a connecting rod 2072 is fixed on the handle body 2071, a boss 209 is arranged at the top of the connecting rod 2072, the connecting rod 2072 is sleeved in the through hole of the connecting sleeve 208, and when the connecting rod 2072 slides distally, the boss 209 can be matched with the push plate 210 on the inner wall of the connecting sleeve 208 to realize limiting; while the connecting rod 2072 of the right sight proximal handle 207 is secured within the connecting sleeve 208 by the connecting screw 206.
The connecting screw 206 penetrates into the connecting sleeve 208 through a threaded hole formed in the connecting sleeve 208, and contacts with the push plate 210.
The push plate 210 is provided with a groove for matching with the connection boss 209, when the boss 209 is located above the groove on the push plate 210, the connection screw 206 is screwed down, so that the connection screw 206 pushes the push plate 210 to move inwards, at this time, the boss 209 can be matched with the groove on the push plate 210 to realize limit, when the connecting rod 2072 needs to slide proximally, the connection screw 206 is rotated reversely, so that the push plate 210 moves outwards, at this time, the boss 209 slides out of the groove on the push plate 210, and the connecting rod 2072 can slide proximally continuously.
The left positioning shaft 104 is hard-wired to a left sight proximal handle 105.
A ball head 212 is arranged below the right positioning shaft 204, a ball socket 211 is arranged at the top of the connecting sleeve 208, and the right positioning shaft 204 is connected in the ball socket 211 at the top of the connecting sleeve 208 in a matched manner through the ball head 212.
The handle body 2071 of the right sight proximal handle 207 is an L-shaped pole comprising a vertical long pole and a lateral short pole, wherein the lateral short pole is disposed above the vertical long pole and the connecting pole 2072 is fixed on the lateral short pole.
The top of the left positioning shaft 104 is provided with left teeth 103 to prevent slipping when the bone surface is oriented, and the top of the right positioning shaft 204 is provided with right teeth 203 to prevent slipping when the bone surface is oriented.
A method of inserting a guidewire or guide pin into bone using a guide, the method comprising:
step one, according to the position to be inserted, aligning the left positioning shaft 104 or the right positioning shaft 204 with the position to be inserted;
step two, the left tooth 103 or the right tooth 203 is close to the bone surface, a guide wire or a guide needle sequentially passes through a required peripheral guide hole 102 and a required left positioning shaft 104 or sequentially passes through a required peripheral guide drilling hole 202 and a required right positioning shaft 204, and the guide wire or the guide needle is inserted into the bone after passing through the left positioning shaft 104 or the right positioning shaft 204;
step three, the right sight 2 is swung by referring to the position of the guide needle or the guide wire in the bone, the left sight proximal end handle 105 and the right sight proximal end handle 207 are moved to the required positions around the hinge shaft 3, the position of the connecting rod 2072 in the connecting sleeve 208 is pushed until the right positioning shaft 204 reaches the required position, the connecting rod 2072 is fixed in the connecting sleeve 208 by screwing the connecting screw 206, and meanwhile, the ball head 212 is also fixed;
fixing the fracture part by a second guide wire or guide wire, namely, sequentially passing through the other peripheral guide hole 102 and the left positioning shaft 104 or sequentially passing through the other peripheral guide drilling 202 and the right positioning shaft 204, and inserting the guide wire or guide wire into the bone after passing through the left positioning shaft 104 or the right positioning shaft 204;
and fourthly, repeating the first to third steps as required to continuously insert the guide wires or the guide pins, and determining the fracture line position along each guide wire or guide pin at one time.
Example 2
In practice, the first guide pin or guide wire is usually inserted blindly by the doctor according to experience, and the right sight 2 is swung by referring to the positions of the guide pins or guide wires of the peripheral guide holes 102 or the peripheral guide holes 202, so that the proximal handles 105 and 207 of the left and right sights are moved around the hinge shaft 3 to the required positions, the hinge 205 finds the optimal position, and then the connecting rod 2072 is pushed to the position in the connecting sleeve 208 until the right positioning shaft 204 reaches the required position, and then the connecting rod 2072 is fixed in the connecting sleeve 208 by screwing the connecting screw 206, so that the second guide pin or guide wire is fixed to the bone, that is, the second guide wire or guide wire is inserted into the bone after passing through the required other peripheral guide holes 102 and the left positioning shaft 104 in turn or the required other peripheral guide holes 202 and the right positioning shaft 204 in turn, and then passing through the left positioning shaft 104 or the right positioning shaft 204.
The third and fourth fixed positions can be found if needed. The fracture line position can be determined at one time, so that the operation time is greatly shortened, and the economic burden of a patient caused by anesthesia time and the operation risk caused by long time are reduced. The fracture fixation of the navicular bones, the metatarsal bones and the like with complex shapes is simplified, and doctors with great experience are not needed, so that the operation is popularized.
Further comprising removing the guide and drilling holes through the guide wire using a hollow drill bit. In certain embodiments, one or more bone screws are inserted into bone along a guide wire. In certain embodiments, the bone screw is cannulated. In a further embodiment, a flowable medium is introduced into the bone screw. In other embodiments, the method includes removing the guidewire and introducing a flowable medium into the bone without the bone screw inserted. In certain particular embodiments, the flowable medium is a bone void filler, bone cement, or a pharmaceutical formulation.
In certain embodiments, the bone defect comprises a defect in the radius, ulna, fibula, collarbone, humerus, pelvis, femur, patella, tibia, talus, calcaneal, navicular, cuneiform, metatarsal, metacarpal, phalangeal, scapula, ankle, mandible, or vertebra. In a particular embodiment, the bone defect is a fracture.
The preferred embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, but the scope of the present utility model is not limited to the specific details of the above embodiments, and within the scope of the technical concept of the present utility model, any person skilled in the art may apply equivalent substitutions or alterations to the technical solution according to the present utility model and the inventive concept thereof within the scope of the technical concept of the present utility model, and these simple modifications are all within the scope of the present utility model.
In addition, the specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described further.
Moreover, any combination of the various embodiments of the utility model can be made without departing from the spirit of the utility model, which should also be considered as disclosed herein.
Claims (6)
1. A guide, characterized by comprising a left sight (1), a right sight (2) and a hinge shaft (3) wherein:
the left sighting device (1) comprises a left sighting device proximal end handle (105), a left positioning shaft (104) and a first connecting cylinder (101), wherein the left positioning shaft (104) is hollow and is connected to the top of the left sighting device proximal end handle (105), the first connecting cylinder (101) is fixed to the bottom of the left positioning shaft (104), and a plurality of peripheral guide holes (102) are formed in the first connecting cylinder (101);
the right sight (2) comprises a second connecting cylinder (201), a right positioning shaft (204), a right sight proximal handle (207) and a connecting sleeve (208), wherein the bottom of the right sight proximal handle (207) is connected with the bottom of the left sight proximal handle (105) through a hinge shaft (3), the distal end of the right sight handle (207) is sleeved in the connecting sleeve (208) through a connecting rod (2072), the connecting sleeve (208) can slide up and down along the connecting rod (2072), the right positioning shaft (204) is hollow, the proximal end of the right positioning shaft is connected with the distal end of the connecting sleeve (208) through a spherical hinge, the bottom of the right positioning shaft (204) is fixedly provided with the second connecting cylinder (201), and a plurality of peripheral guide drilling holes (202) are arranged in the second connecting cylinder (201);
a through hole is formed in the connecting sleeve (208), a push plate (210) is arranged on one side of the inner wall of the through hole, the proximal handle (207) of the right sighting device comprises a handle body (2071), a connecting rod (2072) is fixed on the handle body (2071), a boss (209) is arranged at the top of the connecting rod (2072), the connecting rod (2072) is sleeved in the through hole of the connecting sleeve (208), and when the connecting sleeve (208) slides towards the far end, the boss (209) can be matched with the push plate (210) on the inner wall of the connecting sleeve (208) to realize limit; while the connecting rod (2072) is fastened in the connecting sleeve (208) by the connecting screw (206).
2. A guide according to claim 1, wherein the connecting screw (206) is threaded into the connecting sleeve (208) through a threaded hole provided in the connecting sleeve (208) to contact the push plate (210).
3. A guide according to claim 1, characterized in that the left positioning shaft (104) is hard-wired to the left sight proximal handle (105).
4. A guide according to claim 1, characterized in that a ball (212) is arranged below the right positioning shaft (204), a ball socket (211) is arranged at the top of the connecting sleeve (208), and the positioning shaft (204) is connected in the ball socket (211) at the top of the connecting sleeve (208) in a matched manner through the ball (212) on the positioning shaft.
5. A guide according to claim 1, characterized in that the handle body (2071) of the proximal handle (207) of the right sight is an L-shaped bar comprising a vertical long bar and a lateral short bar, wherein the lateral short bar is arranged above the vertical long bar and the connecting rod (2072) is fixed to the lateral short bar.
6. A guide according to claim 1, characterized in that the left positioning shaft (104) has left teeth (103) on top and the right positioning shaft (204) has right teeth (203) on top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222797052.9U CN219230095U (en) | 2022-10-24 | 2022-10-24 | Guide device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222797052.9U CN219230095U (en) | 2022-10-24 | 2022-10-24 | Guide device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219230095U true CN219230095U (en) | 2023-06-23 |
Family
ID=86808048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222797052.9U Active CN219230095U (en) | 2022-10-24 | 2022-10-24 | Guide device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219230095U (en) |
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2022
- 2022-10-24 CN CN202222797052.9U patent/CN219230095U/en active Active
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