Joint capsule opening device for elbow arthroscopic surgery

Abstract

The utility model relates to a joint capsule distraction device for elbow arthroscopic surgery, which belongs to the field of joint capsule distraction devices and comprises an intervention rod. The adjusting protection assembly is arranged on the inner side of the intervention rod and comprises a supporting plate arranged on the inner side of the intervention rod and a lead screw rotationally arranged on the inner side of the supporting plate; the mounting block is rotatably arranged on the right end surface of the screw rod; the protection block is arranged on the right side of the mounting block; the deformation piece is arranged on the inner side of the intervention rod, and the protection block is located on the inner side of the deformation piece. By arranging the adjusting protection assembly, after an intervention rod is placed into a joint capsule of a patient, a protection block is moved to the outer side of the intervention rod, so that the joint capsule cannot be hurt when the intervention rod expands the interior of the joint capsule through the protection block, meanwhile, the protection block can be better moved into the intervention rod through a deformation piece, and therefore the joint capsule can be more effectively protected. Therefore, injury to the patient when the intervention rod is pulled out of the joint capsule of the patient is avoided, and the practicability of the distraction device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to joint capsule distraction device technical field, specifically is a kind of joint capsule distraction device for elbow arthroscopy surgery. BACKGROUND

[0002] Elbow arthroscopy surgery is a kind of technology for diagnosing and treating elbow joint disease, however, when the elbow joint of patient is operated, since the space in joint capsule is too small, so it needs to use distraction device to distract in joint capsule.

[0003] The existing distraction device is usually to put intervention rod into joint capsule, to distract joint capsule, but the intervention rod of metal material is easy to cause loss to patient when distracting in joint capsule for a long time, meanwhile, intervention rod needs to pass through a large number of muscle parts of elbow when being put into joint capsule, so that the intervention rod of soft material is not easy to be put into joint capsule, thereby leading to the extension of operation time, and easily causing various adverse consequences, so the elbow arthroscopy surgery joint capsule distraction device is proposed to solve the above technical problems. SUMMARY

[0004] In view of one or more of the above defects or improvement needs of prior art, the utility model provides a kind of elbow arthroscopy surgery joint capsule distraction device, with the advantage of improving the practicality of distraction device.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of elbow arthroscopy surgery joint capsule distraction device, including intervention rod;

[0006] Adjusting protection assembly is arranged in the inner side of the intervention rod, which includes support plate, is arranged in the inner side of the intervention rod, screw rod, is rotatably arranged in the inner side of the support plate;Mounting block, rotatably arranged in the right end surface of the screw rod;Protection block, is arranged in the right side of the mounting block;

[0007] Deformation piece is arranged in the inner side of the intervention rod, and the protection block is located in the inner side of the deformation piece.

[0008] As a further improvement of the utility model, the intervention rod includes a let-out slot, which is opened in the left side of the intervention rod;

[0009] Mounting slot is opened in the right side of the let-out slot, and the support plate is arranged in the inner side of the mounting slot;

[0010] Two limiting grooves are symmetrically opened in the inner side of the mounting slot;

[0011] Slip groove is opened in the outer side of the intervention rod, and the slip groove is communicated with the mounting slot.

[0012] As a further improvement of the utility model, the longitudinal section of the yielding slot is circular.

[0013] The longitudinal section of the mounting slot is rectangular.

[0014] As a further improvement of the utility model, the inner bottom surface of the sliding slot is inclined.

[0015] As a further improvement of the utility model, the adjusting and protecting assembly further comprises a rotating shaft arranged on the left end surface of the lead screw and located in the inner side of the yielding slot.

[0016] Two sliding blocks are arranged on the front and rear surfaces of the mounting block respectively, and the two sliding blocks are located in the two limiting slots respectively.

[0017] As a further improvement of the utility model, the outer side of the lead screw is threadedly connected with the inner side of the supporting plate.

[0018] As a further improvement of the utility model, the protecting block is a fan-shaped protecting block, and the protecting block is a rubber protecting block.

[0019] As a further improvement of the utility model, the deforming member comprises a deforming block arranged on the inner side of the mounting slot.

[0020] A deforming hole is arranged on the right side of the deforming block, and the protecting block is located in the deforming hole.

[0021] As a further improvement of the utility model, the deforming hole is a tapered deforming hole, and the end of the deforming hole with a larger size is close to the sliding slot.

[0022] Overall, compared with the prior art, the above technical scheme conceived by the utility model has the beneficial effects including:

[0023] 1. The elbow arthroscopy surgery joint capsule distraction device in the preferred embodiment of the utility model, through the adjusting and protecting assembly arranged, after the intervention rod is put into the joint capsule of the patient, the protecting block is moved to the outer side of the intervention rod, so that the intervention rod is not damaged to the joint capsule when the joint capsule is distracted, and at the same time, through the deforming member, the protecting block can be better moved into the intervention rod, so that the intervention rod can not cause harm to the patient when it is pulled out from the joint capsule of the patient, thereby improving the practicability of the distraction device.

[0024] 2, the elbow arthroscopic surgery joint capsule distraction device in the utility model, its overall structure is simple, convenient operation, not only can make the intervention rod in the joint capsule, at the same time, can also avoid the intervention rod in the joint capsule of patient, cause harm, has good use value and application prospect. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is the overall sectional view structure schematic diagram in the utility model preferred embodiment;

[0026] Figure 2 It is the overall sectional view structure schematic diagram in the utility model preferred embodiment;

[0027] Figure 3 It is the overall sectional view structure schematic diagram in the utility model preferred embodiment;

[0028] Figure 4 It is the overall sectional view structure schematic diagram in the utility model preferred embodiment.

[0029] In all drawings, same reference signs represent same technical features, specifically: 1, intervention rod;11, let go of the slot;12, installation groove;13, limit slot;14, sliding slot;2, adjusting protection assembly;21, support plate;22, screw;23, rotating shaft;24, mounting block;25, sliding block;26, protection block;3, deformation piece;31, deformation block;32, deformation hole. DETAILED DESCRIPTION

[0030] The technical scheme in the utility model embodiments will be described clearly and completely below in conjunction with the drawings in the utility model embodiments, apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0031] In the embodiment, by Figures 1-4 Give, a kind of elbow arthroscopic surgery joint capsule distraction device, can be selected but not limited to include: intervention rod 1;

[0032] Adjusting protection assembly 2 is located in the inside of intervention rod 1, it includes support plate 21, is located in the inside of intervention rod 1, screw 22, can be rotatably located in the inside of support plate 21;Mounting block 24, rotatably located in the right end surface of screw 22;Protection block 26, is located in the right side of mounting block 24;

[0033] Deformation piece 3 is located in the inside of intervention rod 1, and protection block 26 is located in the inside of deformation piece 3.

[0034] In this embodiment, a joint capsule opening device for elbow arthroscopy is provided. After the intervention rod 1 is placed into the patient's joint capsule, the lead screw 22 is rotated, causing the mounting block 24 to move. This moves the protective block 26 to the outside of the intervention rod 1, so that when the intervention rod 1 opens the joint capsule, the protective block 26 can prevent the intervention rod 1 from causing damage to the joint capsule. Furthermore, when the protective block 26 is returned to the intervention rod 1, the deformable member 3 can cause the protective block 26 to curl, thereby allowing the protective block 26 to be returned to the intervention rod 1.

[0035] Furthermore, such as Figure 2 As shown, in the preferred embodiment of this utility model, the intervention rod 1 includes a relief groove 11, which is opened on the left side of the intervention rod 1; a mounting groove 12, which is opened on the right side of the relief groove 11, and a support plate 21 is provided on the inner side of the mounting groove 12; two limiting grooves 13, which are symmetrically opened on the inner side of the mounting groove 12; and a sliding groove 14, which is opened on the outer side of the intervention rod 1 and communicates with the mounting groove 12.

[0036] Furthermore, the longitudinal section of the clearance groove 11 is circular; the longitudinal section of the mounting groove 12 is rectangular.

[0037] Furthermore, the inner bottom surface of the groove 14 is an inclined surface; the intervention rod 1 is a metal intervention rod.

[0038] In this embodiment, several preferred embodiments of the intervention rod 1 are given. Through the clearance groove 11 and the mounting groove 12, the adjustment and protection component 2 can be located entirely inside the intervention rod 1, thereby avoiding damage to the patient caused by the adjustment and protection component 2. Furthermore, through the sliding groove 14, the protection block 26 can be moved to the outside of the intervention rod 1 more effectively.

[0039] Furthermore, such as Figure 3 As shown, the adjustment and protection component 2 in the preferred embodiment of this utility model further includes a rotating shaft 23, which is located on the left end face of the lead screw 22 and is located inside the relief groove 11; two sliding blocks 25 are respectively located on the front and rear surfaces of the mounting block 24 and are respectively located in the two limiting grooves 13.

[0040] Furthermore, the outer side of the lead screw 22 is threadedly connected to the inner side of the support plate 21.

[0041] Furthermore, the protective block 26 is a fan-shaped protective block, and the protective block 26 is a rubber protective block.

[0042] This embodiment provides several preferred embodiments of adjusting the protective component 2. By rotating the rotating shaft 23, the rotating shaft 23 drives the lead screw 22 to rotate. The rotating lead screw 22 drives the mounting block 24 to move. The mounting block 24 is prevented from rotating with the lead screw 22 by a sliding block 25 located in the limiting groove 13 on its outer side, thus ensuring the normal movement of the mounting block 24. Then, the mounting block 24 drives the protective block 26 to move, so that the protective block 26 moves from the sliding groove 14 to the outside of the intervention rod 1. When the intervention rod 1 expands the joint capsule of the patient, the protective block 26 can prevent the intervention rod 1 from expanding the joint capsule for a long time and causing damage to the joint capsule. When the patient's treatment is completed, the above operation is reversed, and the protective block 26 can be moved into the intervention rod 1, so that the intervention rod 1 will not cause damage to the patient when it is withdrawn from the joint capsule. At the same time, the rotating shaft 23 can prevent the lead screw 22 from being exposed on the outside of the intervention rod 1, so that medical staff will not be injured by the lead screw 22.

[0043] Furthermore, such as Figure 4 As shown, the deformable component 3 in the preferred embodiment of this utility model includes a deformable block 31 disposed inside the mounting groove 12; a deformable hole 32 is opened on the right side of the deformable block 31, and a protective block 26 is located inside the deformable hole 32.

[0044] Furthermore, the deformation hole 32 is a conical deformation hole, and the larger end of the deformation hole 32 is close to the slide groove 14.

[0045] In this embodiment, several preferred embodiments of the deformable element 3 are given. When the mounting block 24 moves the protective block 26 to the outside of the intervention rod 1, the protective block 26 will automatically unfold with its own material. At the same time, when the mounting block 24 moves the protective block 26 into the intervention rod 1, the deformation hole 32 will squeeze the protective block 26 as it moves, so that the protective block 26 will bend under the action of the deformation hole 32, thereby allowing the protective block 26 to enter the inside of the intervention rod 1.

[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A joint capsule retractor for elbow arthroscopic surgery, characterized in that, Including the intervention rod (1); An adjustment and protection assembly (2) located inside the intervention rod (1) includes a support plate (21) located inside the intervention rod (1), a lead screw (22) rotatably located inside the support plate (21), a mounting block (24) rotatably located on the right end face of the lead screw (22), and a protection block (26) located on the right side of the mounting block (24). The deformable element (3) is located inside the intervention rod (1), and the protective block (26) is located inside the deformable element (3).

2. The joint capsule retractor for elbow arthroscopy according to claim 1, characterized in that, The intervention rod (1) includes a relief groove (11) which is provided on the left side of the intervention rod (1); The mounting groove (12) is opened on the right side of the clearance groove (11), and the support plate (21) is located inside the mounting groove (12); Two limiting grooves (13) are symmetrically opened on the inner side of the mounting groove (12); A groove (14) is provided on the outside of the intervention rod (1), and the groove (14) is connected to the mounting groove (12).

3. The joint capsule retractor for elbow arthroscopy according to claim 2, characterized in that, The longitudinal cross-section of the relief groove (11) is circular; The longitudinal section of the mounting groove (12) is rectangular.

4. The joint capsule retractor for elbow arthroscopy according to claim 3, characterized in that, The inner bottom surface of the groove (14) is an inclined surface.

5. The joint capsule dilatation device for elbow arthroscopy according to claim 4, characterized in that, The adjustment and protection assembly (2) further includes a rotating shaft (23) located on the left end face of the lead screw (22), and the rotating shaft (23) is located inside the relief groove (11); Two sliding blocks (25) are respectively disposed on the front and rear surfaces of the mounting block (24), and the two sliding blocks (25) are respectively located in the two limiting grooves (13).

6. The joint capsule retractor for elbow arthroscopy according to claim 5, characterized in that, The outer side of the lead screw (22) is threadedly connected to the inner side of the support plate (21).

7. The joint capsule retractor for elbow arthroscopy according to claim 6, characterized in that, The protective block (26) is a fan-shaped protective block, and the protective block (26) is a rubber protective block.

8. The joint capsule retractor for elbow arthroscopy according to claim 7, characterized in that, The deformable component (3) includes a deformable block (31) disposed inside the mounting groove (12); A deformation hole (32) is provided on the right side of the deformation block (31), and the protective block (26) is located inside the deformation hole (32).

9. The joint capsule retractor for elbow arthroscopy according to claim 8, characterized in that, The deformation hole (32) is a tapered deformation hole, and the larger end of the deformation hole (32) is close to the groove (14).

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