CN217118476U - Inserter - Google Patents

Abstract

The utility model provides an inserter, include: a handle, a sleeve and an insertion rod; the handle comprises a grab handle and a handle body connecting part connected with the front end of the grab handle, and the grab handle comprises a handle body front part, a middle transition part, a handle body rear part and a rear end supporting table which are sequentially connected; the size of the cross section of the front part of the handle body is smaller than that of the cross section of the rear part of the handle body; the middle transition part is an arc transition part, and the size of the cross section of the middle transition part is sequentially increased from front to back; a handle body winding groove is arranged on the rear end supporting platform; the handle body connecting part is provided with an external thread; the rear end of the insertion rod is fixedly connected with the handle; the sleeve comprises a barrel body and a holding body connected with the rear end of the barrel body, and the holding body comprises a middle part and two lug parts. The inserter of the utility model has simple structure, accords with the ergonomic design, has good holding effect, is convenient for the operation of doctors, and shortens the operation time.

Description

Inserter

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to an inserter.

Background

With the development of orthopedic sports medicine, injury repair operations such as rotator cuff repair operation, hip labrum repair operation and the like are more and more widely concerned and applied. A common method of revision surgery is to implant an anchor into bone and secure the injured tendon or other tissue to the bone by self-threading the anchor to the bone. The inserter is used for implanting the suture anchor into the human body.

Among the current numerous inserter products, many inserters have poor holding effect according to market research and doctor's opinions, and the doctor is very arduous to operate.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned shortcomings of the prior art, the present invention provides an inserter with good holding effect and labor saving operation.

To achieve the above and other related objects, the present invention provides an inserter, comprising: a handle, a sleeve and an insertion rod;

the handle comprises a grab handle and a handle body connecting part connected with the front end of the grab handle, the grab handle comprises a handle body front part, a middle transition part, a handle body rear part and a rear end supporting table which are sequentially connected, and the size of the cross section of the handle body front part is smaller than that of the handle body rear part; the middle transition part is an arc transition part, and the size of the cross section of the middle transition part is sequentially increased from front to back; a handle body winding groove is formed in the rear end supporting platform; the handle body connecting part is provided with an external thread;

the insertion rod is a hollow straight pipe, the rear end of the insertion rod is inserted into the handle, and the rear end of the insertion rod is fixedly connected with the handle;

the sleeve comprises a sleeve body and a holding body connected with the rear end of the sleeve body, wherein an axial bearing hole is formed in the rear end of the holding body, and an internal thread is formed in the axial bearing hole; the holding body comprises a middle part and two lug parts, the middle part is provided with two oppositely arranged holding surfaces and two oppositely arranged connecting surfaces, and two sides of each connecting surface are respectively connected with the two holding surfaces; the two connecting surfaces are respectively connected with the two lug parts; each ear part is provided with an ear winding groove; the inserting rod is inserted into the sleeve, the handle body connecting part is inserted into the axial bearing hole, and the handle body connecting part is in threaded connection with the axial bearing hole.

Preferably, the front part of the handle body is of a cylindrical structure, and the rear part of the handle body is of a hemispherical structure.

Preferably, each of the ears is provided with two ear winding slots, and each of the ear winding slots is located at the front side of the ear, and the other ear winding slot is located at the rear side of the ear.

Further, every the last side of ear and every all be equipped with ear recess on the downside of ear, every on the ear, two ear recess sets up, every relatively the front side of ear recess and every the rear side of ear recess respectively with two ear wire winding groove intercommunication.

Furthermore, two ear clamping wire grooves are formed in each ear part; on each ear, one of the ear card wire slots is positioned at the front side of the ear, and the other ear card wire slot is positioned at the rear side of the ear; each on the ear, every the ear card wire casing with ear recess compares, ear recess is nearer the middle part.

Preferably, the edge of each ear portion remote from the intermediate member is an arcuate edge portion.

Preferably, the insertion rod includes: the handle is connected to the rear end of the rod body, a rod head is arranged at the front end of the rod body, and the cross section of the rod head is hexagonal.

Furthermore, the front end of the rod head is provided with a rod end part, the cross section of the rod end part is cylindrical, and a step structure is formed at the joint of the rod end part and the rod head part.

Preferably, each of the holding surfaces is an arc-shaped surface which is concave inwards.

As mentioned above, the inserter of the present invention has the following advantages:

the inserter of the utility model, the size of the cross section of the front part of the handle body of the handle is smaller than that of the rear part of the handle body; the middle transition part is an arc transition part, the size of the cross section of the middle transition part is sequentially increased from front to back, the structure ensures that a doctor fits the back part of the handle body when operating, fingers are closed to hold the front part of the handle body, the external contour of the whole handle fits the tight state of the hand, and the doctor saves labor when rotating the handle and is convenient to operate; the connecting part of the handle body is in threaded connection with the axial bearing hole, the rear end of the inserting rod is fixedly connected with the handle, the inserting rod is stably connected with the handle, and the ground anchor placed at the head of the inserter can be pushed to enter a human body by rotating the handle; the inserter of the utility model has simple structure, accords with the ergonomic design, has good holding effect, is convenient for the operation of doctors, and shortens the operation time.

Drawings

Fig. 1 is a perspective view of the interposer of the present embodiment.

Fig. 2 is a perspective view of the inserter of the present embodiment without a sleeve.

Fig. 3 is an enlarged schematic view of a structure shown in fig. 2.

Fig. 4 is a perspective view of the handle of the inserter according to this embodiment.

Fig. 5 is a sectional view schematically showing the handle of the inserter according to this embodiment.

Fig. 6 is a perspective view of the hub of the inserter according to this embodiment.

Fig. 7 is an enlarged schematic view of the structure at B of fig. 6.

Fig. 8 is a perspective view of the axial receiving hole formed in the sleeve of the inserter according to this embodiment.

Fig. 9 is a cross-sectional view showing the sleeve of the inserter according to the present embodiment.

Fig. 10 is a perspective view showing the insertion rod of the inserter according to the present embodiment.

Fig. 11 is a schematic sectional view showing the insertion rod of the inserter according to the present embodiment.

Description of the reference numerals

100 handle

110 handle

111 front part of handle body

112 intermediate transition portion

113 shank rear part

114 rear end support table

115 winding groove for handle body

116 straight strip-shaped concave groove

120 handle body connecting part

121 external screw thread

200 sleeve

210 barrel body

220 holding body

221 axial bearing hole

222 intermediate member

2221 holding surface

2222 connecting surface

223 ear

2231 ear winding groove

2232 ear grooves

2233 ear card wire casing

224 arc edge part

300 insertion rod

310 rod body

320 rod head

330 rod end

340 step structure

Detailed Description

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.

Please refer to the attached drawings. It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function that the present invention can produce and the purpose that the present invention can achieve. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.

As shown in fig. 1 to 11, the interposer of the present embodiment includes: handle 100, sleeve 200 and insertion rod 300;

the handle 100 comprises a grab handle 110 and a handle body connecting part 120 connected with the front end of the grab handle 110, wherein the grab handle 110 comprises a handle body front part 111, a middle transition part 112, a handle body rear part 113 and a rear end support platform 114 which are connected in sequence, and the size of the cross section of the handle body front part 111 is smaller than that of the cross section of the handle body rear part 113; the middle transition part 112 is an arc transition part, and the size of the cross section of the middle transition part 112 is sequentially increased from front to back; a handle winding groove 115 is arranged on the rear end support platform 114; the handle connecting part 120 is provided with an external thread 121;

the insertion rod 300 is a hollow straight pipe, the rear end of the insertion rod 300 is inserted into the handle 100, and the rear end of the insertion rod 300 is fixedly connected with the handle 100;

the sleeve 200 comprises a sleeve body 210 and a holding body 220 connected with the rear end of the sleeve body 210, wherein the rear end of the holding body 220 is provided with an axial bearing hole 221, and the axial bearing hole 221 is provided with an internal thread; the holding body 220 comprises a middle part 222 and two ear parts 223, the middle part 222 has two oppositely disposed holding surfaces 2221 and two oppositely disposed connecting surfaces 2222, and two sides of each connecting surface 2222 are respectively connected with the two holding surfaces 2221; the two connection surfaces 2222 are connected to the two ear portions 223, respectively; an ear winding groove 2231 is arranged on each ear 223; the insertion rod 300 is inserted into the sleeve 200, the shank connecting portion 120 is inserted into the axial receiving hole 221, and the shank connecting portion 120 is screwed into the axial receiving hole 221.

In the inserter of the present invention, the size of the cross section of the front part 111 of the handle 100 is smaller than the size of the cross section of the rear part 113 of the handle; the middle transition part 112 is an arc transition part, the cross section of the middle transition part 112 is sequentially increased from front to back, the structure ensures that a palm is attached to the rear part 113 of the handle body when a doctor operates, fingers are closed to hold the front part 111 of the handle body, the external outline of the whole handle 100 is very attached to the hand-holding state, the doctor is labor-saving when rotating the handle 100, and the operation is convenient; the handle body connecting part 120 is in threaded connection with the axial bearing hole 221, the rear end of the insertion rod 300 is fixedly connected with the handle 100, the insertion rod 300 is stably connected with the handle 100, and the anchor placed at the head of the insertion rod 300 can be pushed into a human body by rotating the handle 100; the inserter of the utility model has simple structure, accords with the ergonomic design, has good holding effect, is convenient for the operation of doctors, and shortens the operation time. The handle winding slot 115 allows the suture to be wound around it without the suture being placed in a mess.

In this embodiment, the handle 100 and the sleeve 200 are injection molded parts, the insertion rod 300 is made of stainless steel, and the insertion rod 300 and the handle 100 are integrated by injection molding.

The shank front portion 111 is of cylindrical configuration and the shank rear portion 113 is of hemispherical configuration. This configuration allows the surgeon to manipulate the hand with the palm more closely adjacent to the rear portion 113 of the handle, the fingers closer together to grip the front portion 111 of the handle, and the overall handle 100 has an outer contour more closely adjacent to the hand.

Two ear winding grooves 2231 are provided on each of the ear portions 223, and one of the ear winding grooves 2231 is positioned at a front side of the ear portion 223 and the other ear winding groove 2231 is positioned at a rear side of the ear portion 223 on each of the ear portions 223. The ear winding groove 2231 is provided so that the suture thread is not cut by the sharp edge when it is wound.

An ear groove 2232 is formed on an upper side surface of each ear portion 223 and a lower side surface of each ear portion 223, two ear grooves 2232 are disposed opposite to each other on each ear portion 223, and a front side of each ear groove 2232 and a rear side of each ear groove 2232 are respectively communicated with the two ear winding grooves 2231. The ear grooves 2232 facilitate injection molding of the ear portions 223, so that the ear portions 223 are not too thick to cause thermal bonding. The ear recess 2232 communicates with the ear winding groove 2231, so that the structure of the ear 223 is more compact.

Each ear 223 is provided with two ear card wire slots 2233; on each ear 223, one of the ear card wire slots 2233 is on the front side of the ear 223 and the other ear card wire slot 2233 is on the back side of the ear 223; on each ear 223, ear groove 2232 is closer to middle piece 222 than ear groove 2232 in each ear card wire groove 2233. The ear clip groove 2233 is for clipping in of the suture.

The edge of each ear 223 remote from the intermediate element 222 is an arcuate edge 224, which allows the configuration of the ear 223 to be contoured without causing unnecessary damage to the surgeon's hand when using the inserter.

The insert rod 300 includes: the handle 100 is connected to the rear end of the rod body 310, a rod head 320 is arranged at the front end of the rod body 310, and the cross section of the rod head 320 is hexagonal. The hexagonal head 320 is intended to accommodate the passage of an anchor having a hexagonal socket.

The rear end of the lever body 310 is knurled to allow for better internal fit when injection molded with the handle 100.

The front end of the rod head 320 is provided with a rod end 330, the cross section of the rod end 330 is cylindrical, and the joint of the rod end 330 and the rod head 320 forms a step structure 340. The size of the cylindrical rod end 330 is such that when the cylindrical rod end 330 is placed in an anchor, a certain interference exists between the rod end 330 and the anchor, and the self-supporting effect of the anchor is achieved. The rod end 330 has a profile dimension less than the profile dimension of the rod head 320, the connection of the rod end 330 to the rod head 320 forms a step structure 340, and the step structure 340 is configured to allow the insertion rod 300 to contact the anchor end surface for positioning purposes.

Each of the holding surfaces 2221 is an inwardly depressed arc-shaped surface. The holding surface 2221 can be held to the finger, and holding surface 2221 is the inside sunken arcwall face, then holding surface 2221 and finger are more laminated.

Along the circumference of the handle 110, a plurality of straight bar-shaped concave grooves 116 are uniformly distributed on the outer circumferential surface of the handle 110, each straight bar-shaped concave groove 116 extends along the front-back direction of the handle 100, the arrangement of the straight bar-shaped concave grooves 116 not only reduces the wall thickness of the handle 100 and facilitates injection molding, but also increases the friction force during holding, and a doctor cannot skid when rotating the handle 100.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims (9)

1. An interposer, comprising: a handle (100), a sleeve (200) and an insertion rod (300);

the handle (100) comprises a grab handle (110) and a handle body connecting part (120) connected with the front end of the grab handle (110), the grab handle (110) comprises a handle body front part (111), a middle transition part (112), a handle body rear part (113) and a rear end support platform (114) which are sequentially connected, and the size of the cross section of the handle body front part (111) is smaller than that of the cross section of the handle body rear part (113); the middle transition part (112) is an arc transition part, and the sizes of the cross sections of the middle transition part (112) are sequentially increased from front to back; a handle body winding groove (115) is formed in the rear end supporting platform (114); the handle body connecting part (120) is provided with an external thread (121);

the insertion rod (300) is a hollow straight pipe, the rear end of the insertion rod (300) is inserted into the handle (100), and the rear end of the insertion rod (300) is fixedly connected with the handle (100);

the sleeve (200) comprises a sleeve body (210) and a holding body (220) connected with the rear end of the sleeve body (210), an axial bearing hole (221) is formed in the rear end of the holding body (220), and an internal thread is formed in the axial bearing hole (221); the holding body (220) comprises a middle part (222) and two ear parts (223), the middle part (222) is provided with two oppositely arranged holding surfaces (2221) and two oppositely arranged connecting surfaces (2222), and two sides of each connecting surface (2222) are respectively connected with the two holding surfaces (2221); the two connecting surfaces (2222) are respectively connected with two lug parts (223); each ear part (223) is provided with an ear winding groove (2231); the insertion rod (300) is inserted into the sleeve (200), the shank body connecting part (120) is inserted into the axial bearing hole (221), and the shank body connecting part (120) is in threaded connection with the axial bearing hole (221).

2. The interposer of claim 1, wherein: the front handle body part (111) is of a cylindrical structure, and the rear handle body part (113) is of a hemispherical structure.

3. The interposer of claim 1 wherein: two ear winding grooves (2231) are arranged on each ear (223), one of the ear winding grooves (2231) is arranged on the front side of the ear (223) on each ear (223), and the other ear winding groove (2231) is arranged on the rear side of the ear (223).

4. The interposer of claim 3, wherein: every the side of going up of ear (223) and every all be equipped with ear recess (2232) on the downside of ear (223), every on ear (223), two ear recess (2232) set up relatively, every the front side of ear recess (2232) and every the rear side of ear recess (2232) respectively with two ear wire winding groove (2231) intercommunication.

5. The interposer of claim 4, wherein: two ear card wire slots (2233) are arranged on each ear (223); on each of said ears (223), one of said ear card slot (2233) being on a front side of said ear (223) and the other of said ear card slot (2233) being on a rear side of said ear (223); on each of the ears (223), each of the ear card wire slots (2233) is closer to the middle member (222) than the ear groove (2232) is to the ear groove (2232).

6. The interposer of claim 1, wherein: the edge of each ear (223) far away from the middle part (222) is an arc-shaped edge part (224).

7. The interposer of claim 1, wherein: the insertion rod (300) includes: the handle (100) is connected to the rear end of the rod body (310), a rod head (320) is arranged at the front end of the rod body (310), and the cross section of the rod head (320) is hexagonal.

8. The interposer of claim 7, wherein: the front end of the rod head (320) is provided with a rod end part (330), the cross section of the rod end part (330) is cylindrical, and a step structure (340) is formed at the joint of the rod end part (330) and the rod head (320).

9. The interposer of claim 1, wherein: each holding surface (2221) is an arc-shaped surface which is inwards concave.

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