Bone and cartilage tissue harvester

Abstract

The utility model relates to the technical field of medical instruments, and discloses a bone and cartilage tissue sampler, comprising a sampler assembly; the sampler assembly comprises: a handle bar; a connecting portion, arranged at one end of the handle bar; a drill rod, arranged at one end of the connecting portion; a drilling head, arranged at one end of the drill rod; a ratchet wrench assembly is provided at one end of the handle bar, and the ratchet wrench assembly comprises: a wrench head; a ratchet, rotatably connected to the inside of the wrench head; by arranging the ratchet wrench assembly and the limiting handle assembly, when drilling, the limiting handle is held by one hand to limit the handle bar by the limiting handle, and the ratchet wrench assembly is held by the other hand to drive the handle bar to rotate by the ratchet wrench assembly, the ratchet wrench can smoothly drive the handle bar to rotate, so that the sampler can smoothly rotate the drill rod, thereby improving the stability of drilling and avoiding shaking during drilling to cause damage to surrounding tissues.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a bone and cartilage tissue sampling device. Background Art

[0002] In modern society, due to various external factors such as working environment, poor diet, smoking and drinking, as well as endocrine and gene-induced tumors, human life is seriously threatened. Bone tumors will occur near human bones or their appendages. Bone tumors are divided into benign and malignant. Benign bone tumors are easy to cure and have a good prognosis. Malignant bone tumors develop rapidly, have a poor prognosis, and a high mortality rate. During clinical treatment, pathological specimens of bone tumors need to be taken for testing.

[0003] In the prior art (publication number CN214434379U, proposing a bone and cartilage tissue sampling drill and a bone and cartilage tissue sampling device), the drill body includes a drill body having a first side wall, a second side wall and a through cavity, the two ends of the cavity respectively penetrate the first side wall and the second side wall, the cavity is used to accommodate bone and cartilage tissue, the first side wall is provided with a drilling portion extending away from the second side wall, the drilling portion is arranged along the circumference of the first side wall, the drilling portion has a first end and a second end, the first end is connected to the first side wall, and the drilling portion gradually narrows from the first end to the second end.

[0004] In the prior art, a drill rod is used to obtain materials. However, during the drilling process, the handle needs to be rotated steadily to drill, and the drill rod cannot be rotated stably. If it shakes, it will cause damage to the surrounding tissues. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a bone and cartilage tissue sampler, which has the advantages of smoothly rotating the drill rod, improving the stability of drilling, and avoiding damage to surrounding tissues caused by shaking during drilling. It solves the problem that during the drilling process, the handle needs to be rotated smoothly, and the drill rod cannot be rotated stably, which will cause damage to surrounding tissues if shaking occurs.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bone and cartilage tissue sampling device, comprising a sampling component; the sampling component comprises:

[0009] Handle bar;

[0010] A connecting portion, arranged at one end of the handle rod;

[0011] A drill rod, disposed at one end of the connecting portion;

[0012] A drilling head, arranged at one end of the drill rod;

[0013] A ratchet wrench assembly is provided at one end of the handle bar, and the ratchet wrench assembly comprises:

[0014] Wrench head;

[0015] A ratchet wheel rotatably connected to the interior of the wrench head;

[0016] A pawl, arranged on the outer side of the ratchet;

[0017] A connector, rotatably connected to one side of the wrench head, connected to one end of the ratchet, and one end of which is clamped with one end of the handle rod;

[0018] A wrench handle, fixedly connected to the outer side wall of the wrench head;

[0019] The outer side wall of the handle rod is rotatably connected to the limited position handle assembly.

[0020] Preferably, the ratchet wrench assembly further comprises:

[0021] An anti-slip sleeve is arranged on the outer side wall of the wrench handle.

[0022] Preferably, the limit handle assembly includes:

[0023] A handle cover is rotatably connected to the outer side wall of the handle rod;

[0024] A bearing, fixedly connected to the inner wall of the handle cover and connected to the outer wall of the handle rod;

[0025] The handle bar is fixedly connected to the outer side wall of the handle cover.

[0026] Preferably, a fixing assembly is provided at one end of the handle assembly.

[0027] Preferably, the fixing assembly comprises:

[0028] A fixing seat, fixedly connected to one end of the handlebar;

[0029] A limiting screw, threadedly connected to the top of the fixing seat;

[0030] A fixing knob, fixedly connected to the top end of the limiting screw;

[0031] The fixing block is rotatably connected to the bottom end of the limiting screw.

[0032] Preferably, the fixing assembly further comprises:

[0033] The rubber pad is fixedly connected to the inner side wall of the fixing seat.

[0034] (III) Beneficial effects

[0035] Compared with the prior art, the utility model provides a bone and cartilage tissue sampling device, which has the following beneficial effects:

[0036] 1. The bone and cartilage tissue sampler is provided with a ratchet wrench assembly and a limit handle assembly. When drilling, one hand holds the limit handle to limit the handle rod, and the other hand holds the ratchet wrench assembly to drive the handle rod to rotate. The ratchet wrench can smoothly drive the handle rod to rotate, so that the sampler can smoothly rotate the drill rod, improve the stability of drilling, and avoid shaking during drilling to cause damage to surrounding tissues.

[0037] 2. The bone and cartilage tissue harvester is provided with a fixing component, which is connected to a limit handle component. The limit handle can be fixed to the bracket through the fixing component. The fixing component is connected to the bracket, which can replace one hand and the fixation is more stable, further improving the stability and convenience of sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic diagram of the structure of the utility model;

[0039] Figure 2 It is a structural schematic diagram of the ratchet wrench assembly in the utility model;

[0040] Figure 3 It is a side view of the limit handle assembly of the utility model;

[0041] Figure 4 It is a front view of the limit handle assembly and the fixing assembly in the utility model.

[0042] In the figure:

[0043] 10. Material collection assembly; 11. Handle bar; 12. Connecting part; 13. Drill rod; 14. Drill head;

[0044] 20. ratchet wrench assembly; 21. wrench head; 22. ratchet; 23. pawl; 24. connector; 25. wrench handle; 26. anti-slip sleeve;

[0045] 30. Limit handle assembly; 31. Handle cover; 32. Bearing; 33. Handle rod;

[0046] 40. Fixing assembly; 41. Fixing seat; 42. Limiting screw; 43. Fixing knob; 44. Fixing block; 45. Rubber pad. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0048] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0049] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0050] In addition, in this application, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0051] In the related art, a drill rod is used to obtain materials. However, during the drilling process, the handle needs to be rotated steadily to drill. The drill rod cannot be rotated stably. If it shakes, it will cause damage to the surrounding tissues.

[0052] In order to solve the problems in the related art to a certain extent, the embodiment of the present application provides a bone and cartilage tissue sampler. By setting a ratchet wrench assembly and a limit handle assembly, when drilling, one hand holds the limit handle to limit the handle rod, and the other hand holds the ratchet wrench assembly to drive the handle rod to rotate. The ratchet wrench can smoothly drive the handle rod to rotate, so that the sampler can smoothly rotate the drill rod, thereby improving the stability of drilling and avoiding shaking during drilling to cause damage to surrounding tissues.

[0053] The present application is described below with reference to the accompanying drawings and specific embodiments:

[0054] Combination Figure 1-Figure 4 The present application provides a bone and cartilage tissue sampling device, including a sampling assembly 10; the sampling assembly 10 includes: a handle bar 11; a connecting portion 12, which is arranged at one end of the handle bar 11; a drill rod 13, which is arranged at one end of the connecting portion 12; and a drilling head 14, which is arranged at one end of the drill rod 13;

[0055] The connecting part 12 fixes the drill rod 13 to the handle rod 11. One end of the drill rod 13 is provided with a drill head 14. The drill head 14 is a sawtooth structure, which is convenient for drilling bones and cartilages.

[0056] A ratchet wrench assembly 20 is provided at one end of the handle bar 11, and the ratchet wrench assembly 20 includes: a wrench head 21; a ratchet 22, which is rotatably connected to the inside of the wrench head 21; a pawl 23, which is arranged on the outside of the ratchet 22; a connector 24, which is rotatably connected to one side of the wrench head 21, connected to one end of the ratchet 22, and one end of which is clamped with one end of the handle bar 11; a wrench handle 25, which is fixedly connected to the outer side wall of the wrench head 21; and an anti-slip sleeve 26, which is arranged on the outer side wall of the wrench handle 25;

[0057] One side of the connector 24 has a groove for convenient clamping with one end of the handle bar 11. When drilling, the wrench handle 25 is held and the wrench head 21 is driven to rotate by the wrench handle 25. At this time, the pawl 23 does not limit the ratchet 22, so that the connector 24 does not drive the handle bar 11 to rotate. When the wrench handle 25 is rotated in the opposite direction, the pawl 23 limits the ratchet 22, so that the wrench handle 25 drives the wrench head 21 to rotate in the opposite direction, so that the wrench head 21 drives the internal ratchet 22 to rotate, and the connector 24 drives the handle bar 11 to rotate to perform the drilling operation.

[0058] The outer wall of the handle bar 11 is rotatably connected to the limit handle assembly 30, and the limit handle assembly 30 includes: a handle cover 31, which is rotatably connected to the outer wall of the handle bar 11; a bearing 32, which is fixedly connected to the inner wall of the handle cover 31 and connected to the outer wall of the handle bar 11; a handle bar 33, which is fixedly connected to the outer wall of the handle cover 31;

[0059] The handle cover 31 is connected to the outer wall of the handle rod 11 through the bearing 32, so that the handle cover 31 can rotate on the outer wall of the handle rod 11. By holding the handle rod 33, the handle rod 11 can rotate smoothly in the handle cover 31 when rotating.

[0060] In some embodiments, a fixing assembly 40 is provided at one end of the handle assembly 30, and the fixing assembly 40 includes: a fixing seat 41 fixedly connected to one end of the handle rod 33; a limiting screw 42 threadedly connected to the top of the fixing seat 41; a fixing knob 43 fixedly connected to the top of the limiting screw 42; a fixing block 44 rotatably connected to the bottom end of the limiting screw 42; and a rubber pad 45 fixedly connected to the inner wall of the fixing seat 41;

[0061] In this embodiment, the fixing component 40 is connected to the handle rod 33. Before drilling, the fixing seat 41 can be inserted into other brackets, and then the limiting screw 42 is rotated to drive the fixing block 44 to descend, so that the fixing block 44 is close to the rubber pad 45, and the fixing block 44 and the rubber pad 45 cooperate to fix the fixing seat 41 to the bracket. Using the fixing component 40 to connect with the bracket can replace one hand, and the fixation is more stable, further improving the stability and convenience of material collection.

[0062] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0063] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0064] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bone and cartilage tissue sampling device, comprising a sampling assembly (10); the sampling assembly (10) comprises: Handle bar (11); A connecting portion (12) is arranged at one end of the handle rod (11); A drill rod (13) is arranged at one end of the connecting portion (12); A drilling head (14) is arranged at one end of the drilling rod (13); The invention is characterized in that: a ratchet wrench assembly (20) is provided at one end of the handle rod (11), and the ratchet wrench assembly (20) comprises: Wrench head (21); A ratchet (22) rotatably connected to the interior of the wrench head (21); A ratchet pawl (23) is arranged on the outer side of the ratchet wheel (22); A connector (24) is rotatably connected to one side of the wrench head (21), connected to one end of the ratchet (22), and one end of which is clamped to one end of the handle rod (11); A wrench handle (25) fixedly connected to the outer side wall of the wrench head (21); The outer side wall of the handle rod (11) is rotatably connected to a limit handle assembly (30).

2. The bone and cartilage tissue sampling device according to claim 1, characterized in that: The ratchet wrench assembly (20) further comprises: An anti-slip sleeve (26) is arranged on the outer side wall of the wrench handle (25).

3. The bone and cartilage tissue sampling device according to claim 1, characterized in that: The limit handle assembly (30) comprises: A handle cover (31) is rotatably connected to the outer side wall of the handle rod (11); A bearing (32) is fixedly connected to the inner wall of the handle cover (31) and connected to the outer wall of the handle rod (11); The handle bar (33) is fixedly connected to the outer side wall of the handle cover (31).

4. The bone and cartilage tissue sampling device according to claim 3, characterized in that: A fixing assembly (40) is provided at one end of the limit handle assembly (30), and the fixing assembly (40) comprises: A fixing seat (41) fixedly connected to one end of the handle bar (33); A limiting screw (42) threadedly connected to the top of the fixing seat (41); A fixed knob (43) fixedly connected to the top end of the limiting screw (42); The fixing block (44) is rotatably connected to the bottom end of the limiting screw (42).

5. The bone and cartilage tissue sampling device according to claim 4, characterized in that: The fixing assembly (40) further comprises: The rubber pad (45) is fixedly connected to the inner side wall of the fixing seat (41).

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