CN214484577U

CN214484577U - Combined casing surgical tool, bevel hollow casing assembly and stripper

Info

Publication number: CN214484577U
Application number: CN202022468312.9U
Authority: CN
Inventors: 肖志坚; 陈金洪; 项杰; 夏晓斌; 孙奇
Original assignee: Hangzhou Fuyang Hosiptal Of Traditional Chinese Medical Orthopedics
Current assignee: Hangzhou Fuyang Hosiptal Of Traditional Chinese Medical Orthopedics
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-10-26
Anticipated expiration: 2030-10-30

Abstract

The utility model belongs to the field of medical equipment, concretely relates to combination sleeve operation instrument, hollow thimble assembly of bevel connection and stripper, including blunt nosed needle and the hollow thimble assembly of flat mouthful, blunt nosed needle one end is the button head structure, and the other end is the pointed cone structure, the hollow thimble assembly of flat mouthful includes a plurality of flat mouthful of hollow sleeves, and flat mouthful of hollow sleeve both ends have the flat mouthful structure, a plurality of flat mouthful of hollow sleeves can overlap in proper order and overlap, and the hollow sleeve of minimum flat mouthful can overlap and join in marriage outside the blunt nosed needle. The beneficial effects of the utility model reside in that: the utility model can avoid the defects of large scab left by the large opening of the traditional open operation and even skin necrosis; the utility model can greatly reduce the possibility of the damage of the nerve and blood vessels; the utility model can simplify the operation of the operation, reduce the operation difficulty and facilitate the mastering of orthopedists; the utility model discloses be blunt design, avoided nervous, vascular and other soft tissues to be stabbed.

Description

Combined casing surgical tool, bevel hollow casing assembly and stripper

Technical Field

The utility model belongs to the field of medical equipment, concretely relates to combination sleeve operation instrument, hollow thimble assembly of bevel connection and stripper.

Background

Greater tuberosity fracture of humerus, external humeral condyle fracture, fracture of radius head, fracture of styloid process of radius, fracture of anterior superior spine and inferior spine of ilium, greater trochanter fracture of femur, Hoffa fracture, fracture of tibial plateau schaztker1 type, fracture of posterior medial tibial plateau, avulsion fracture of anterior and posterior cruciate ligament of tibial plateau, fracture of posterior ankle, fracture of ligulate calcaneus, and most of the fractures of these sites traditionally require surgical incision internal fixation treatment. And these sites have bone fragments that are particularly deep from the skin surface. There are a large number of muscle tendon neuro-vessels between the bone mass and the skin. The tension of muscles and tendons is particularly difficult to pull, and the nerve vessels are distributed in more and irregular areas, are fragile, easy to break and easy to lacerate, and are easy to even cut. Even if the nerve vessels are not pulled apart by the strain, the deep and small holes are not conducive to the reduction and fixation of the bone fragments for the operator. Enlarging the operation wound inevitably brings more risks and injuries to the patient. Therefore, for the types of fractures mentioned above, the operator always carefully chooses the size of the wound and the reduction fixation of the bone mass.

SUMMERY OF THE UTILITY MODEL

In order to make up the deficiency of the prior art, the utility model provides a technical scheme of combination sleeve operation instrument, bevel connection hollow sleeve subassembly and stripper.

The utility model provides a combination sleeve pipe surgical tool, its characterized in that includes blunt nosed needle and the hollow sleeve pipe subassembly of flat mouthful, blunt nosed needle one end is the button head structure, and the other end is sharp cone structure, the hollow sleeve pipe subassembly of flat mouthful includes a plurality of flat mouthful hollow sleeve pipes, and flat mouthful of hollow sleeve pipe both ends have the flat mouthful structure, a plurality of flat mouthful hollow sleeve pipes can overlap in proper order and overlap, and the hollow sleeve pipe of minimum flat mouthful can overlap and join in marriage outside the blunt nosed needle.

The combined cannula surgical tool is characterized in that the length of the blunt-ended needle is 140-160 mm, the diameter of the main body part is 2.5-3.5 mm, the length of the pointed cone structure is 15-25 mm, and the head end of the pointed cone structure is a ball head with the diameter of 0.7-0.13 mm.

The combined cannula surgical tool is characterized in that the blunt-ended needle is 150 mm long, the diameter of the main body part is 3 mm, the length of the pointed cone structure is 20 mm, and the head end of the pointed cone structure is a ball head with the diameter of 1 mm.

The combined cannula operation tool is characterized in that the flat-mouth hollow cannula assembly comprises 5-12 flat-mouth hollow cannulas, the end faces of the tube walls at two ends of each flat-mouth hollow cannula are arc surfaces, the length of each flat-mouth hollow cannula is 90-110 mm, the inner diameter of the smallest flat-mouth hollow cannula is 2.5-3.5 mm, the outer diameter of each flat-mouth hollow cannula is 4.5-5.5 mm, and the inner diameters and the outer diameters of all the flat-mouth hollow cannulas are gradually increased one by 1-3 mm.

The combined cannula operation tool is characterized in that the flat-mouth hollow cannula assembly is provided with 8 flat-mouth hollow cannulas, the length of each flat-mouth hollow cannula is 100 mm, the inner diameter of the smallest flat-mouth hollow cannula is 3 mm, the outer diameter of the smallest flat-mouth hollow cannula is 5 mm, and the inner diameter and the outer diameter of all the flat-mouth hollow cannulas are gradually increased one by 2 mm.

The bevel hollow cannula assembly matched with the cannula surgical tool is characterized by comprising a plurality of bevel hollow cannulas, wherein at least one end of each bevel hollow cannula is provided with a bevel structure, the size and the number of the bevel hollow cannulas correspond to those of the flat hollow cannulas one by one, the smallest bevel hollow cannula can be sleeved outside the blunt needle, and the rest bevel hollow cannulas can be sleeved outside the corresponding flat hollow cannulas.

The bevel hollow sleeve assembly is characterized in that one end of the bevel hollow sleeve is provided with a flat structure, the other end of the bevel hollow sleeve is provided with a bevel structure, and the angle of the bevel structure is 20-40 degrees.

The bevel hollow sleeve assembly is characterized in that the angle of the bevel structure of the bevel hollow sleeve is 30 degrees.

The stripper is used in cooperation with the combined sleeve surgical tool and is characterized by comprising a handle part, a neck part and a spoon part which are sequentially connected.

The stripper is characterized in that the handle part has a length of 80-120 mm, a width of 8-12 mm and a thickness of 1.5-2.5 mm; the length of the neck part is 15-25 mm, the width of the neck part is 1.5-2.5 mm, and the thickness is 1-2 mm; the length of the spoon part is 20-40 mm, the width of the spoon part is 2.5-3.5, and the thickness is 1-2 mm.

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

1) the utility model can avoid the defects of large scab left by the large opening of the traditional open operation and even skin necrosis;

2) the utility model can greatly reduce the possibility of the damage of the nerve and blood vessels;

3) the utility model can simplify the operation of the operation, reduce the operation difficulty and facilitate the mastering of orthopedists;

4) the utility model is designed with blunt head, which avoids the puncture of nerve, blood vessel and other soft tissues;

5) the utility model discloses a double cannula design, one set is the hollow thimble assembly of bevel connection, one set is the hollow thimble assembly of flat connection, the hollow thimble of bevel connection is for more conveniently inserting the arrival destination, nevertheless the hollow sheathed tube breach part of bevel connection is opened mouthful electric drill bit and is twisted the soft tissue interference of inserting easily when the hollow screw of lead pin, and rotatory lead pin also is crept crowded soft tissue of inserting easily, the hollow thimble of flat connection can all block the soft tissue, but not smooth and easy when inserting, the flat cooperation of bevel connection is used and is respectively got the length and respectively hidden the short.

Drawings

FIG. 1 is a schematic view of the structure of the combined casing surgical tool of the present invention;

FIG. 2 is a schematic view of the blunt needle structure of the present invention;

FIG. 3 is a schematic structural view of a flat hollow sleeve assembly according to the present invention;

FIG. 4 is an enlarged view taken at A in FIG. 3;

FIG. 5 is a schematic structural view of the beveled hollow sleeve assembly of the present invention;

FIG. 6 is an enlarged view of FIG. 5 at B;

fig. 7 is a schematic view of the middle stripper of the present invention.

Detailed Description

In the description of the present invention, it is to be understood that the terms "one end", "the other end", "the outside", "upper", "inside", "horizontal", "coaxial", "central", "end", "length", "outer end", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1-4, a combination cannula operation instrument, including blunt-ended needle 1 and flat hollow cannula subassembly, blunt-ended needle 1 one end is round head structure 10, and the other end is sharp cone structure 11, flat hollow cannula subassembly includes a plurality of flat hollow cannula 2, and flat hollow cannula 2 both ends have the flat structure, a plurality of flat hollow cannula 2 can overlap in proper order, and minimum flat hollow cannula 2 can overlap and join in marriage outside blunt-ended needle 1. A tiny gap is reserved between the tubes, the tubes are allowed to freely slide without blocking, the end faces of the two ends of the tube wall are rounded, the inner opening is small in rounded range and can be used for only cutting hands, the outer opening is large in rounded range, and muscle tissues can be discharged in and out of muscle gaps.

The blunt-ended needle 1 is 140-160 mm in length, the diameter of the main body part is 2.5-3.5 mm, the length of the pointed cone structure 11 is 15-25 mm, and the head end of the pointed cone structure 11 is a ball head with the diameter of 0.7-0.13 mm. Preferably, the blunt-ended needle 1 has a length of 150 mm, a diameter of the main body part of 3 mm, a length of the pointed cone structure 11 of 20 mm, and a head end of the pointed cone structure 11 is a ball head with a diameter of 1 mm.

The flat-mouth hollow sleeve assembly is provided with 5-12 flat-mouth hollow sleeves 2, the end faces of the tube walls at two ends of each flat-mouth hollow sleeve 2 are arc surfaces, the length of each flat-mouth hollow sleeve 2 is 90-110 mm, the inner diameter of the smallest flat-mouth hollow sleeve 2 is 2.5-3.5 mm, the outer diameter of the smallest flat-mouth hollow sleeve 2 is 4.5-5.5 mm, and the inner diameters and the outer diameters of all the flat-mouth hollow sleeves 2 are gradually increased one by 1-3 mm. Preferably, the flat-mouth hollow sleeve assembly has 8 flat-mouth hollow sleeves 2, the length of the flat-mouth hollow sleeve 2 is 100 mm, the smallest flat-mouth hollow sleeve 2 has an inner diameter of 3 mm and an outer diameter of 5 mm, and the inner diameter and the outer diameter of all the flat-mouth hollow sleeves 2 are gradually increased by 2 mm.

In order to match with the combined casing operation tool, the utility model also designs a bevel hollow casing assembly and a stripper.

As shown in fig. 5 and 6, the bevel hollow cannula assembly used in combination with the combined cannula surgical tool comprises a plurality of bevel hollow cannulas 3, wherein at least one end of each bevel hollow cannula 3 is provided with a bevel structure 30, the size and number of the bevel hollow cannulas 3 correspond to those of the flat hollow cannulas 2 one by one, the smallest bevel hollow cannula 3 can be sleeved outside the blunt needle 1, and the rest bevel hollow cannulas 3 can be sleeved outside the corresponding flat hollow cannulas 2.

Preferably, one end of the bevel hollow sleeve is provided with a flat structure, the other end of the bevel hollow sleeve is provided with a bevel structure 30, and the angle of the bevel structure 30 is 20-40 degrees. In the flat structure processing, referring to the flat hollow sleeve assembly, the tip of the bevel structure 30 must be polished to a high inner edge and a low outer edge, and the lateral edge part is polished to be round.

In the above structure, the angle of the bevel structure 30 of the bevel hollow sleeve is 30 °.

As shown in FIG. 7, a dissector for use with the above-described combination cannula surgical tool includes a handle portion 40, a neck portion 41 and a spoon portion 42, which are connected in series. Wherein the handle part 40 has a length of 80-120 mm, a width of 8-12 mm and a thickness of 1.5-2.5 mm; the length of the neck part 41 is 15-25 mm, the width of the neck part 41 is 1.5-2.5 mm, and the thickness is 1-2 mm; the length of the spoon part 42 is 20-40 mm, the width of the spoon part 42 is 2.5-3.5, and the thickness is 1-2 mm. Preferably, the handle 40 has a length of 100 mm, a width of 10 mm, and a thickness of 2 mm; the length of the neck 41 is 20 mm, the width of the neck 41 is 2 mm, and the thickness is 1.5 mm; the length of the spoon part 42 is 30 mm, the width of the spoon part 42 is 3, and the thickness is 1.5 mm. The handle part 40 is provided with a groove structure convenient for holding, and two sides of the spoon part 42 are slightly in arc round and smooth protrusions.

The stripper has the function of separating all soft tissues including nerve vessels in a blunt way and opening a circuit for the blunt-ended needle and the cannula.

The utility model is suitable for, but not limited to, fracture of greater tuberosity of humerus, fracture of external condyle of humerus, fracture of head of radius, fracture of styloid process of radius, fracture of anterior superior spine and inferior spine of ilium, fracture of greater trochanter of femur, fracture of Hoffa, fracture of tibial plateau schaztker1 type, fracture of inner side behind tibial plateau, fracture of anterior cruciate ligament and posterior cruciate ligament cut-off of tibial plateau, fracture of posterior ankle, and fracture of calcaneus lingualis.

The following description will be made by taking the example of the operation of tearing and removing the cut point of cruciate ligament behind the tibial plateau and fracture, and the matching use method of the combined sleeve surgical tool, the bevel hollow sleeve assembly and the stripper of the utility model is described.

Before an operation, the size of a bone block, the distance from the inner side edge of the bone block to the inner side edge of a tibial plateau and the distance from the outer side edge of the bone block to the outer side edge of the tibial plateau are measured on an X-ray film and a CT film, and the number of the bone blocks in the front of the operation is reached. Less than 10 millimeters to the bone piece diameter, need carefully use the utility model discloses an instrument and supporting apparatus use to the suggestion that the bone piece diameter is greater than 10 millimeters the utility model discloses an instrument and supporting apparatus. After anesthesia is successful, the patient takes the prone position, and properly pads the ankle part to enable the knee joint to be in a slightly flexed knee state, so that the tension and the resistance of the skin, the soft tissue and the neuromuscular tendon of the popliteal fossa are relieved. Before the scalpel is formally scratched, the body surface projection position of the fracture block is located and found by a body surface cross Kirschner wire method under the C-shaped arm X-ray fluoroscopy. A small opening is cut by a small blade at the position close to the cranial direction of the projection of the body surface of the bone block, and the length of the small opening is not more than 10 millimeters. The stripper is used for separating the subcutaneous soft tissue in a blunt way, particularly pushing away the potential nerve blood vessels, and opening a relatively deep but small soft tissue channel. The detacher is withdrawn, the blunt needle 1 is replaced to enter from the back of the popliteal fossa along the opened soft tissue channel to reach the bone end, and the finding of the fracture block is confirmed by an X-ray fluoroscopy machine.

When the C-arm machine confirms that the blunt-ended needle 1 is found and reaches a fracture block through fluoroscopy, the bevel-mouth structure 30 is sleeved downwards into the tail end of the blunt-ended needle 1 through the bevel-mouth hollow sleeve 3 with the smallest size, and enters soft tissues. The tip of the bezel structure 30 is gently rotated when it encounters resistance, and if it can continue to advance, it advances, and if it cannot continue, it stops advancing. The beveled hollow cannula 3 is withdrawn by a suitable small amount and the stripper is then used to find a place to block, and the stripper is used to push away the soft tissue block that obstructs the advancement of the beveled hollow cannula 3 blunt, while continuing to try the insertion of the beveled hollow cannula 3, in this way until the tip of the beveled structure 30 reaches the fracture block. After the bevel hollow sleeve 3 confirms that the bone fracture block is reached, the bevel hollow sleeve 3 can be withdrawn, the blunt-ended needle 1 is sleeved in the flat hollow sleeve 2 until one end of the flat hollow sleeve 2 reaches the bone fracture block, and then the first-size bevel hollow sleeve 3 is inserted. According to the method, the insertion of the first bevel hollow sleeve 3 and the flat hollow sleeve 2 is continuously increased until the inner diameter of the sleeve is larger than the diameter of the tail cap of the hollow screw which is planned to be used, and then the increase of the sleeve is stopped. At this moment, the blunt-end needle 1 is pulled out, all used plain end hollow sleeves 2 are reserved, a hollow screw guide pin planned to be used is driven into an inner diameter channel of the minimum plain end hollow sleeve 2, and then, after the C-arm machine confirms that the fracture block is accurately punctured by the guide pin and is fixed at the original fracture tearing and removing position of the tibial plateau to be correct, all sleeves except the maximum plain end hollow sleeve 2 are pulled out, and the hollow opening electric drill head is used for driving an opening along the direction of the guide pin to withdraw from the opening electric drill head, so that a suitable hollow screw is used for rotating the fracture block along the direction of the guide pin. The guide pin is reserved, and the screwdriver and the maximum flat-mouth hollow sleeve 2 are withdrawn. C-arm machine is used for drawing out the guide pin after the fracture block is properly fixed. If the fracture is large enough, it is large enough to allow a second or even a third hollow nail to be driven. The nailing is continued in this way. If the fracture piece is just enough to drive in one screw, the operation is finished. And (5) flushing and suturing. The small opening only needs to sew one to two needles, and the diameter of the tail cap of most hollow screws is less than five millimeters. The number of finally used casings is often between 2 and 4. Not all cannulas are used up, even if the fourth cannula is used, the diameter is 11 mm, and two needle openings are needed to be sewn.

The utility model discloses a characteristics and improvement part:

1) the defects that a large scar is left in a large opening of the traditional open surgery and even the skin is necrotic are avoided;

2) greatly reducing the possibility of neurovascular injury;

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. The utility model provides a combination sleeve pipe operation instrument, its characterized in that includes blunt-ended needle (1) and flat hollow sleeve pipe subassembly, blunt-ended needle (1) one end is button head structure (10), and the other end is pointed cone structure (11), flat hollow sleeve pipe subassembly includes a plurality of flat hollow sleeve pipes (2), and flat hollow sleeve pipe (2) both ends have the flat structure, a plurality of flat hollow sleeve pipes (2) can overlap in proper order, and minimum flat hollow sleeve pipe (2) can overlap and join in marriage outside blunt-ended needle (1).

2. The combination cannula surgical tool as claimed in claim 1, wherein the blunt tip needle (1) has a length of 140 mm to 160 mm, a diameter of the main body portion of 2.5 mm to 3.5 mm, a length of the pointed cone structure (11) of 15 mm to 25 mm, and a tip of the pointed cone structure (11) is a ball head with a diameter of 0.7 mm to 0.13 mm.

3. The combination cannula surgical tool of claim 2, characterized in that the blunt tip needle (1) has a length of 150 mm, a main body portion diameter of 3 mm, a pointed cone structure (11) having a length of 20 mm, and a tip end of the pointed cone structure (11) having a ball head with a diameter of 1 mm.

4. The combination cannula surgical tool according to claim 1, wherein the flat hollow cannula assembly has 2 to 12 flat hollow cannulas (2), the end surfaces of the two end walls of the flat hollow cannulas (2) are arc surfaces, the length of the flat hollow cannulas (2) is 90 to 110 mm, the smallest flat hollow cannula (2) has an inner diameter of 2.5 to 3.5 mm and an outer diameter of 4.5 to 5.5 mm, and the inner diameter and the outer diameter of all the flat hollow cannulas (2) are gradually increased from 1 to 3 mm.

5. The combination cannula surgical tool according to claim 4, characterized in that the flat hollow cannula assembly has 8 flat hollow cannulas (2), the length of the flat hollow cannula (2) is 100 mm, the smallest flat hollow cannula (2) has an inner diameter of 3 mm and an outer diameter of 5 mm, and the inner and outer diameters of all the flat hollow cannulas (2) are gradually increased by 2 mm.

6. A bevel hollow cannula assembly for use with a combination cannula surgical tool according to any one of claims 1-5, comprising a plurality of bevel hollow cannulas (3), wherein at least one end of each bevel hollow cannula (3) has a bevel structure (30), the plurality of bevel hollow cannulas (3) are sized and numbered to correspond to the flat hollow cannulas (2) one-to-one, the smallest bevel hollow cannula (3) can be fitted over the blunt needle (1), and the remaining bevel hollow cannulas (3) can be fitted over the corresponding flat hollow cannulas (2).

7. A hollow sleeve assembly according to claim 6, characterized in that said hollow sleeve has a flat mouth structure at one end and a bevelled mouth structure (30) at the other end, the angle of the bevelled mouth structure (30) being 20-40 °.

8. A hollow beveled cannula assembly according to claim 7, wherein the angle of the beveled edge structure (30) of the beveled edge hollow cannula is 30 °.

9. A dissector for use with a combination cannula surgical tool as claimed in any one of claims 1-5, characterized by comprising a handle portion (40), a neck portion (41) and a spoon portion (42) connected in series.

10. The stripper as claimed in claim 9, characterised in that the handle (40) has a length of 80-120 mm, a width of 8-12 mm and a thickness of 1.5-2.5 mm; the length of the neck part (41) is 15-25 mm, the width of the neck part (41) is 1.5-2.5 mm, and the thickness is 1-2 mm; the length of the spoon part (42) is 20-40 mm, the width of the spoon part (42) is 2.5-3.5, and the thickness is 1-2 mm.