CN219306783U

CN219306783U - Osteoporosis bone sample sampler

Info

Publication number: CN219306783U
Application number: CN202320236785.7U
Authority: CN
Inventors: 余颖锋
Original assignee: Dongguan Songshanhu Central Hospital Dongguan Shilong People's Hospital Dongguan Third People's Hospital Dongguan Cardiovascular Disease Research Institute
Current assignee: Dongguan Songshanhu Central Hospital Dongguan Shilong People's Hospital Dongguan Third People's Hospital Dongguan Cardiovascular Disease Research Institute
Priority date: 2023-02-16
Filing date: 2023-02-16
Publication date: 2023-07-07
Anticipated expiration: 2033-02-16

Abstract

The utility model provides an osteoporosis bone sample sampler, which comprises a sampling sleeve, a memory metal part and an attraction interface screw cap, wherein the sampling sleeve is provided with a first pipe cavity penetrating through two ends of the sampling sleeve, the memory metal part comprises memory metal claw teeth, at least two memory metal claw teeth are arranged on the distal end of the sampling sleeve along the circumferential direction of the distal end of the sampling sleeve, each memory metal claw tooth can be in an open state at normal temperature and in an inward folding state at 36 ℃ or above, and the attraction interface screw cap is sleeved on the proximal end of the sampling sleeve and is in threaded connection with the sampling sleeve. The osteoporosis bone sample sampler can take bone samples through the percutaneous vertebroplasty channel, solves the problem of difficult puncture tunnel sampling, provides pathological basis for clinical clear diagnosis, and is worthy of clinical popularization.

Description

Osteoporosis bone sample sampler

Technical Field

The utility model relates to the technical field of medical equipment, in particular to an osteoporosis bone sample sampler.

Background

Spinal compression fractures are often traumatic in the elderly, particularly those with osteoporosis. And spinal minimally invasive surgery is increasingly increased along with the aged increase of China. For the judgment of the cause of vertebral fracture, a pathological specimen (namely, a bone sample) is usually required, but minimally invasive surgery such as percutaneous vertebral body is performed through a deep channel, and the bone sample is difficult to directly take out from the deep channel. At present, no exact sampling tool can take out a bone sample through a vertebroplasty channel, and the pathological examination of the bone sample is a gold standard for diagnosis, so that a plurality of pathological fractures and osteoporosis fractures can not be identified clinically, and diagnosis is delayed.

Accordingly, there is a need for an osteoporotic bone sample sampler that can take bone samples through a percutaneous vertebroplasty channel.

Disclosure of Invention

The utility model aims to provide an osteoporosis bone sample sampler capable of taking bone samples through a percutaneous vertebroplasty channel.

In order to achieve the above object, the utility model provides an osteoporosis bone sample sampler, comprising a sampling sleeve, a memory metal part and an attracting interface screw cap, wherein the sampling sleeve is provided with a first lumen penetrating through two ends of the sampling sleeve, the memory metal part comprises memory metal claw teeth, at least two memory metal claw teeth are arranged on the distal end of the sampling sleeve along the circumferential direction of the distal end of the sampling sleeve, each memory metal claw tooth can be in an open state at normal temperature and in an inward furling state at a temperature of 36 ℃ or above, and the attracting interface screw cap is sleeved on the proximal end of the sampling sleeve and is in threaded connection with the sampling sleeve.

Preferably, the sampling sleeve is provided with graduations along the length direction thereof.

Preferably, the proximal end of the sampling cannula is provided with a handle.

Preferably, the memory metal part further comprises a memory metal tube, the memory metal tube is provided with a second lumen penetrating through two ends of the memory metal tube, the proximal end of the memory metal tube is connected with the sampling sleeve, the first lumen is communicated with the second lumen, and the memory metal claw teeth are arranged on the distal end of the memory metal tube along the circumferential direction of the memory metal tube.

Preferably, the suction interface nut comprises an annular portion and a mesh grid portion, the annular portion is provided with a containing cavity, the containing cavity is communicated with the first pipe cavity, and the mesh grid portion is arranged in the containing cavity and connected to the inner wall of the annular portion.

Preferably, the mesh grille part is located at the proximal end of the annular part, and the distal end of the annular part is sleeved on the proximal end of the sampling sleeve and is in threaded connection with the sampling sleeve.

Compared with the prior art, the osteoporosis bone sample sampler has the advantages that at least two memory metal claw teeth are arranged at the distal end of the sampling sleeve, the memory metal claw teeth are in an open state at normal temperature, when the osteoporosis bone sample sampler enters a human body through the percutaneous vertebral body forming sleeve channel, the memory metal claw teeth can be in an inward folding state at the temperature of 36 ℃ or above, so that bone tissues can be held and cut off by the memory metal claw teeth, the osteoporosis bone sample sampler is taken out from the percutaneous vertebral body forming sleeve channel together with the bone tissues, and then the memory metal claw teeth are opened after being cooled by soaking in cold physiological saline and the like, so that the bone tissues can be removed. Therefore, the osteoporosis bone sample sampler can take bone samples through the percutaneous vertebroplasty channel, solves the problem of difficult puncture tunnel sampling, provides pathological basis for clinically definite diagnosis, and is worthy of clinical popularization.

Drawings

Fig. 1 is an internal structural view of an osteoporosis bone sample probe according to the present utility model.

Fig. 2 is a block diagram of a memory metal portion of the osteoporotic bone sample probe of the present utility model.

Fig. 3 is a block diagram of the suction interface nut of the osteoporotic bone sample collector of the present utility model.

Detailed Description

In order to describe the technical content and constructional features of the present utility model in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.

Referring to fig. 1 and 2, the osteoporosis bone sample sampler 100 of the present utility model comprises a sampling sleeve 1, a memory metal part 2 and an attracting interface nut 3, wherein the sampling sleeve 1 has a first lumen 11 penetrating through both ends thereof, the memory metal part 2 comprises memory metal claws 21, at least two memory metal claws 21 are arranged on the distal end of the sampling sleeve 1 along the circumferential direction of the distal end of the sampling sleeve 1, each memory metal claw 21 can be in an open state at normal temperature and in an inward furling state at 36 ℃ and above, and the attracting interface nut 3 is sleeved on the proximal end of the sampling sleeve 1 and is in threaded connection with the sampling sleeve 1. In the present embodiment, the number of the memory metal claws 21 is three, but not limited to this. The sampling sleeve 1 may be made of stainless steel, and the memory metal pawl 21 may be made of the conventional nickel-titanium shape memory alloy (astm f 2063), but is not limited thereto.

Referring to fig. 1, in the present embodiment, a scale 12 is provided on a sampling sleeve 1 along its length. By providing the graduations 12 on the sampling cannula 1, the surface operator can observe and understand the depth of insertion of the sampling cannula 1 into the percutaneous vertebroplasty channel. Further, the proximal end of the sampling cannula 1 is provided with a handle 13. By providing the handle 13, the operator is facilitated to take and operate the sampling cannula 1.

Referring to fig. 1 and 2, in the present embodiment, the memory metal part 2 further includes a memory metal tube 22, the memory metal tube 22 has a second lumen 221 penetrating through both ends thereof, the proximal end of the memory metal tube 22 is connected with the sampling cannula 1, the first lumen 11 is communicated with the second lumen 221, and the memory metal claw 21 is disposed on the distal end of the memory metal tube 22 along the circumferential direction of the memory metal tube 22. However, the present utility model is not limited thereto, and in other embodiments, the memory metal tube 22 may be omitted from the memory metal part 2, and the memory metal claw 21 may be directly disposed on the sampling sleeve 1. The memory metal tube 22 may be made of a conventional nickel-titanium shape memory alloy (astm f 2063), but is not limited thereto.

Referring to fig. 1 and 3, the suction interface nut 3 includes an annular portion 31 and a mesh grille portion 32, the annular portion 31 has a receiving cavity 311, the receiving cavity 311 is communicated with the first lumen 11, and the mesh grille portion 32 is disposed in the receiving cavity 311 and connected to an inner wall of the annular portion 31. Specifically, the mesh grille part 32 is located at the proximal end of the annular part 31, and the distal end of the annular part 31 is sleeved on the proximal end of the sampling sleeve 1 and is in threaded connection with the sampling sleeve 1. Wherein, be equipped with the internal thread on the distal end inner wall of annular portion 31, be equipped with the external screw thread on the proximal end of sampling sleeve 1, annular portion 31 passes through the external screw thread cooperation of internal screw thread and sampling sleeve 1 to be connected, and the distal end of annular portion 31 can be connected with the negative pressure suction tube of negative pressure equipment, and negative pressure equipment accessible holding chamber 311 carries out the negative pressure suction to first lumen 11. Wherein, the mesh grille part 32 of the suction interface nut 3 can block bone tissue, so as to avoid the bone tissue from being pumped away when negative pressure is pumped by the negative pressure equipment.

Referring to fig. 1 to 3, the osteoporosis bone sample collector 100 of the present utility model operates according to the following specific principles:

s1, percutaneous vertebroplasty tube placement: after the patient adopts the prone position and the anesthesia and disinfection towel are spread, the patient is subjected to positioning puncture on the surface of the pathological fracture vertebral body, a percutaneous vertebral body forming sleeve is placed in the vertebral body forming sleeve, and the sleeve just passes through the pedicle and does not enter the vertebral body.

S2, sampling a bone sample: the osteoporosis bone sample probe 100 is advanced into the percutaneous vertebroplasty cannula passage, rotated into the vertebral body about 2cm deeper than before; waiting for a certain time (about 1 minute), wherein the temperature of the memory metal part 2 reaches 36 ℃, and the memory metal claw teeth 21 are folded inwards to hold the bone tissue in the tube; the sampling cannula 1 is rotated one turn, and the bone tissue is cut off by the tooth-like projections of the memory metal claw 21. The proximal end of the sampling sleeve 1 is screwed into the suction interface screw cap 3, and is connected with a negative pressure suction pipe of a negative pressure device through the suction interface screw cap 3, and then the sampling sleeve 1 is slowly pulled out; and removing the negative pressure equipment, screwing out the suction interface nut 3 at the proximal end, and immersing the memory metal claw teeth 21 in cold normal saline for cooling. The memory metal claw 21 is loosened after the temperature is lowered, so that a bone tissue sample can be taken and sent to pathological examination, and the pathological diagnosis of the disease is clarified.

In summary, according to the osteoporosis bone sample probe 100 of the present utility model, at least two memory metal claws 21 are disposed at the distal end of the sampling cannula 1, the memory metal claws 21 are opened at normal temperature, when the osteoporosis bone sample probe 100 enters the human body through the percutaneous vertebral body forming cannula passage, the memory metal claws 21 can be folded inwards at 36 ℃ and above, so that the memory metal claws 21 can be used to hold and cut off bone tissue, the osteoporosis bone sample probe 100 can be taken out together with bone tissue from the percutaneous vertebral body forming cannula passage, and then the memory metal claws 21 are opened after being cooled by immersing in cold physiological saline or the like, so that bone tissue can be removed. Therefore, the osteoporosis bone sample sampler 100 of the utility model can take bone samples through the percutaneous vertebroplasty channel, solves the problem of difficult puncture tunnel sampling, provides pathological basis for clinically definite diagnosis, and is worthy of clinical popularization.

The foregoing disclosure is only illustrative of the preferred embodiments of the present utility model and is not to be construed as limiting the scope of the utility model, which is defined by the appended claims.

Claims

1. The utility model provides an osteoporosis bone sample sampler, its characterized in that includes sampling sleeve pipe, memory metal part and attracts the interface nut, sampling sleeve pipe has the first lumen that runs through its both ends, memory metal part includes memory metal claw tooth, at least two memory metal claw tooth along the circumferencial direction of sampling sleeve pipe's distal end set up in sampling sleeve pipe's distal end, each memory metal claw tooth can be in open state under normal atmospheric temperature and be inwards furled state at 36 ℃ and above, attract interface nut cover locate on the proximal end of sampling sleeve pipe and with sampling sleeve pipe threaded connection.

2. The osteoporotic bone sample collector according to claim 1, wherein the sampling sleeve is provided with graduations along its length.

3. The osteoporotic bone sample sampler of claim 1, wherein the proximal end of the sampling cannula is provided with a handle.

4. The osteoporosis bone sample device of claim 1, wherein said memory metal section further comprises a memory metal tube having a second lumen extending therethrough, said memory metal tube proximal end being connected to said sampling cannula and said first lumen being in communication with said second lumen, said memory metal pawl being disposed on said memory metal tube distal end in a circumferential direction of said memory metal tube.

5. The osteoporotic bone sample sampler of claim 1, wherein the suction interface nut comprises an annular portion having a receiving cavity in communication with the first lumen and a mesh grille portion disposed in the receiving cavity and connected to an inner wall of the annular portion.

6. The osteoporotic bone sample sampler of claim 5, wherein the mesh grid portion is located at a proximal end of the ring portion, and a distal end of the ring portion is sleeved on a proximal end of the sampling sleeve and is threadedly connected to the sampling sleeve.