Ovarian tissue biopsy device

Abstract

The utility model relates to the technical field of biopsy devices, in particular to an ovarian tissue biopsy device which comprises a sleeve rod, a sampling rod is arranged in the sleeve rod in a sleeved mode, the bottom end of the sampling rod extends out of the sleeve rod, a suction mechanism is arranged between the upper end and the lower end of the sampling rod, and the sampling rod is connected with the suction mechanism. The suction mechanism comprises an air suction cylinder arranged at the bottom end of the sampling rod, a cavity is formed in the air suction cylinder in the length direction of the air suction cylinder, a piston rod is slidably arranged in the air suction cylinder, and the bottom end of the piston rod extends out of the air suction cylinder and is fixedly provided with a push rod; a limiting rod is fixedly arranged on the side, close to the air suction barrel, of the push rod, the end, away from the push rod, of the limiting rod is inserted into the inner wall of the air suction barrel, a sampling cavity is formed in the top end of the sampling rod, and an air suction hole is formed in the bottom end of the sampling cavity. And the ovarian tissue is prevented from falling off from the cutting edge when the device is pulled out.

Description

Technical Field

[0001] The utility model relates to the technical field of biopsy devices, in particular to an ovarian tissue biopsy device. Background Art

[0002] Ovarian biopsy is a surgical procedure to detect ovarian function and can be used to diagnose and treat a variety of gynecological diseases. During an ovarian biopsy, the doctor will use an ultrasound probe to find follicles in the patient's ovaries, and use a puncture needle to pierce the ovaries to remove the follicle tissue for biopsy. After the ovarian biopsy, the patient needs to pay attention to local cleanliness to avoid infection. The advantage of ovarian biopsy is that ovarian cancer can be detected as early as possible, so that early treatment can be given, thereby improving the patient's survival rate.

[0003] The Chinese patent with the patent number CN112890930B proposes a micro-ovarian tissue biopsy device, which "comprises: a puncture cannula, a biopsy forceps rod cannula, a biopsy forceps rod, a biopsy forceps cannula, a biopsy forceps, a puncture cannula seat, a two-way damping sleeve, a sub-joint, a biopsy forceps rod seat, a pressing head, and a spring. In the micro-ovarian tissue biopsy device of the present invention, the two-way damping sleeve inside the biopsy forceps rod seat can not only perform a two-way emergency stop limit on the biopsy forceps rod cannula, but also ensure the internal air tightness, prevent leakage, etc., and ensure the stability of the device during use. The elastic pressing structure at the rear end of the biopsy forceps rod can make the biopsy forceps in a retracted state when there is no external force. Compared with the conventional state of the biopsy forceps in an open state, the device can be pulled back and forth to facilitate the doctor's hand retraction control, improve the efficiency of the operation and reduce the doctor's physical exertion."

[0004] During ovarian biopsy, a puncture needle is usually used to sample the ovarian tissue. During sampling, the blade at the front end of the puncture needle is used to cut the ovarian tissue. After sampling is completed, the blade is pulled out of the patient's body along with the ovarian tissue along with the puncture needle. However, the blade of the puncture needle in the above technology does not have a strong enough gripping force on the ovarian tissue. When cutting with the blade, the ovarian tissue may not be completely cut off. Therefore, during the needle withdrawal process, the obtained ovarian tissue may slip off the blade, resulting in sampling failure. Utility Model Content

[0005] The purpose of the utility model is to provide an ovarian tissue biopsy device to solve the problems raised in the above background technology.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] An ovarian tissue biopsy device comprises a sleeve rod, a sampling rod is sleeved inside the sleeve rod, the bottom end of the sampling rod extends to the outside of the sleeve rod, a suction mechanism is arranged between the upper and lower ends of the sampling rod, the suction mechanism comprises a vacuum cylinder arranged at the bottom end of the sampling rod, a chamber is opened inside the vacuum cylinder along its length direction, a piston rod is slidably arranged inside the vacuum cylinder, the bottom end of the piston rod extends to the outside of the vacuum cylinder and is fixedly arranged with a push rod, a limiting rod is fixedly arranged on a side of the push rod close to the vacuum cylinder, an end of the limiting rod away from the push rod is inserted into the inner wall of the vacuum cylinder, a sampling cavity is opened in the top end of the sampling rod, and a suction hole is opened at the bottom end of the sampling cavity.

[0008] Preferably, an air extraction pipe is provided through the bottom end of the air extraction hole, and the bottom end of the air extraction pipe extends to the bottom end of the sampling rod, and a filter cotton is fixedly provided at the bottom end of the sampling cavity.

[0009] Preferably, a conversion mechanism is provided at the bottom of the sampling rod above the vacuum cylinder, and the conversion mechanism includes a conversion cylinder fixedly provided on the outer wall of the sampling rod, the bottom end of the conversion cylinder is fixedly connected to the top end of the vacuum cylinder, rubber sleeves are fixedly provided on both sides of the conversion cylinder, a sealing block is fixedly connected to one side of the rubber sleeve, and one end of the sealing block passes through the rubber sleeve and is fixedly provided with a rubber plug.

[0010] Preferably, a plurality of liquid supply holes are provided at the top of the sampling rod, and the liquid supply holes are distributed along the circumferential direction of the sampling rod, a liquid supply tube is provided between the bottom end of the sampling rod and the liquid supply holes, and the bottom ends of the liquid supply tube and the exhaust tube are respectively opposite to two rubber stoppers.

[0011] Preferably, a valve is provided on the top outer wall of the vacuum cylinder, and the valve is communicated with the chamber.

[0012] Preferably, a limiting groove is provided at the bottom of the sleeve rod, the sampling rod passes through the limiting groove, and a stopper is fixedly provided on the outer wall of the sampling rod, and a spring is pressed between the stopper and the top of the limiting groove.

[0013] Preferably, a supporting mechanism is provided at the bottom end of the sleeve rod, and the supporting mechanism includes a supporting seat fixedly provided at the bottom end of the sleeve rod, the sampling rod passes through the supporting seat, a supporting ring is fixedly provided on the outer wall of the supporting seat, a plurality of serpentine tubes are fixedly provided on the outer wall of the supporting ring, the serpentine tubes are evenly distributed along the circumferential direction of the supporting ring, and a suction cup is fixedly provided at one end of the serpentine tube away from the supporting ring.

[0014] Beneficial effects of the utility model:

[0015] 1. The utility model can improve the grasping force of the sampling rod on the ovarian tissue by arranging a suction mechanism, and can suck the cut ovarian tissue into the sampling cavity during sampling, so as to prevent the ovarian tissue from falling off the blade when the device is pulled out. Even if the blade fails to completely cut the ovarian tissue, the ovarian tissue can be peeled off as a whole by the attraction of the suction mechanism, which can greatly improve the success rate of biopsy sampling. After the sampling is completed, the ovarian tissue can be pushed out of the sampling cavity by pushing the piston rod in the reverse direction, which can help medical staff to quickly and easily remove the ovarian tissue from the sampling rod.

[0016] 2. The utility model can achieve a dual purpose effect of the vacuum pump by setting a conversion mechanism. When sampling, the gripping force of the sampling rod can be improved through the piston rod and the vacuum pump. After the conversion by the conversion mechanism, the piston rod is pushed, and the piston rod can inject liquid medicine into the patient's body through the vacuum pump, thereby assisting treatment.

[0017] 3. The utility model can provide auxiliary support and fixation for the entire device by setting up a supporting mechanism, which can free the hands of medical staff and allow them to free their hands to perform surgery better. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the prior art description are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the internal structure of the utility model after the sleeve rod is cut open;

[0021] Figure 3 This utility model Figure 2 An enlarged schematic diagram of part A is shown;

[0022] Figure 4 It is a schematic diagram of the structure inside the end of the sampling rod of the utility model;

[0023] Figure 5 It is a schematic diagram of the internal structure of the vacuum cylinder and the conversion cylinder of the utility model after being cut open;

[0024] Figure 6 This utility model Figure 5 An enlarged schematic diagram of part B is shown.

[0025] The reference numerals in the figures are as follows:

[0026] 1. Set rod; 2. Sampling rod;

[0027] 3. Suction mechanism; 31. Vacuum cylinder; 32. Piston rod; 33. Push rod; 34. Limit rod; 35. Chamber; 36. Vacuum pipe; 37. Vacuum hole; 38. Filter cotton;

[0028] 4. conversion mechanism; 41. conversion cylinder; 42. rubber sleeve; 43. sealing block; 44. rubber plug;

[0029] 5. Support mechanism; 51. Support seat; 52. Support ring; 53. Serpentine tube; 54. Suction cup;

[0030] 6. Spring; 7. Limiting groove; 8. Stopper; 9. Sampling chamber; 10. Valve; 11. Liquid supply pipe; 12. Liquid supply hole. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] The device's "top, bottom, up, down" perspectives are Figure 1 The directions in the attached drawings are taken as reference.

[0033] like Figure 1-6As shown, an ovarian tissue biopsy device comprises a sleeve rod 1, a sampling rod 2 is sleeved inside the sleeve rod 1, the top ends of the sleeve rod 1 and the sampling rod 2 are both arranged in an oblique thorn shape, and an arc-shaped blade is also arranged at the outer edge of the top end of the sampling rod 2, the bottom end of the sampling rod 2 extends to the outside of the sleeve rod 1, and a suction mechanism 3 is arranged between the upper and lower ends of the sampling rod 2, the suction mechanism 3 is used to improve the gripping force of the sampling rod 2 when sampling, the suction mechanism 3 comprises a suction cylinder 31 arranged at the bottom end of the sampling rod 2, the suction cylinder 31 is a cylindrical air cylinder, a chamber 35 is opened inside the suction cylinder 31 along its length direction, a piston rod 32 is slidably arranged inside the suction cylinder 31, the piston rod 32 can move back and forth along the length direction of the suction cylinder 31, the top end of the piston rod 32 is located inside the chamber 35 and is provided with a piston, the bottom end of the piston rod 32 extends to the outside of the suction cylinder 31 and is fixedly provided with a push rod 33, the push rod 33 is arranged along the radial direction of the piston rod 32, and the push rod 33 A limit rod 34 is fixedly arranged on one side close to the air pump 31. One end of the limit rod 34 away from the push rod 33 is inserted into the inner wall of the air pump 31. The limit rod 34 is arranged to limit the freedom of the piston rod 32. When the piston rod 32 rotates in a circumferential direction, the air pump 31 and the sampling rod 2 are driven to rotate together. A sampling cavity 9 is provided in the top end of the sampling rod 2. The sampling cavity 9 is arranged along the length direction of the sampling rod 2. A suction hole 37 is provided at the bottom end of the sampling cavity 9. A suction pipe 36 is provided at the bottom end of the suction hole 37. The suction pipe 36 is arranged along the length direction of the sampling rod 2, and the bottom end of the suction pipe 36 extends to the bottom end of the sampling rod 2. When sampling, the suction pipe 36 is connected to the chamber 35 in the suction cylinder 31. When the suction pipe 36 is used to draw air, suction is generated at the suction hole 37. A filter cotton 38 is fixedly provided at the bottom end of the sampling cavity 9. The filter cotton 38 can block the ovarian tissue and absorb liquid.

[0034] A limiting groove 7 is provided at the bottom of the sleeve rod 1, and the limiting groove 7 is arranged along the length direction of the sleeve rod 1. The sampling rod 2 passes through the limiting groove 7, and a stopper 8 is fixedly arranged on the outer wall of the sampling rod 2. The outer diameter of the stopper 8 is larger than the outer diameter of the sampling rod 2. The stopper 8 is located at the bottom end of the limiting groove 7, and a spring 6 is pressed between the stopper 8 and the top end of the limiting groove 7. The setting of the limiting groove 7 can limit the feeding depth of the sampling rod 2, so that the maximum feeding depth of the sampling rod 2 will not exceed the length of the limiting groove 7, thereby avoiding harm to the patient.

[0035] A conversion mechanism 4 is provided above the vacuum cylinder 31 at the bottom of the sampling rod 2. The conversion mechanism 4 is used to switch the working mode of the vacuum cylinder 31. The conversion mechanism 4 includes a conversion cylinder 41 fixedly provided on the outer wall of the sampling rod 2. The bottom end of the conversion cylinder 41 is fixedly connected to the top end of the vacuum cylinder 31. The bottom of the conversion cylinder 41 is connected to the chamber 35 in the vacuum cylinder 31. Rubber sleeves 42 are fixedly provided on both sides of the conversion cylinder 41. The rubber sleeve 42 has a certain elasticity and a cavity is provided inside. A sealing block 43 is fixedly connected to one side of the rubber sleeve 42. The axial direction of the sealing block 43 is perpendicular to the axial direction of the sampling rod 2. The connection between the sealing block 43 and the rubber sleeve 42 is sealed. One end of the sealing block 43 passes through the rubber sleeve 42 and is fixedly provided with a rubber Plug 44, the rubber plug 44 is away from the outer wall of the sampling rod 2 without external force, the air extraction pipe 36 extends from the bottom end of the air extraction hole 37 to the bottom end of the sampling rod 2, and the bottom end of the air extraction pipe 36 is opposite to one of the rubber plugs 44 of the conversion mechanism 4, and a plurality of liquid feeding holes 12 are provided on the top of the sampling rod 2, the liquid feeding holes 12 are located on the outside of the sampling cavity 9, and the liquid feeding holes 12 are distributed along the circumferential direction of the sampling rod 2, a liquid feeding pipe 11 is provided between the bottom end of the sampling rod 2 and the liquid feeding hole 12, and the bottom end of the liquid feeding pipe 11 is opposite to another rubber plug 44 of the conversion mechanism 4, and a valve 10 is provided on the top outer wall of the vacuum cylinder 31, and the valve 10 is connected to the chamber 35, and anti-inflammatory, antibacterial and other types of liquid medicine can be introduced into the vacuum cylinder 31 through the valve 10.

[0036] Example 2

[0037] Based on Example 1, the difference lies in that a supporting mechanism 5 is provided at the bottom end of the sleeve rod 1, and the supporting mechanism 5 is used to support and fix the entire device to facilitate medical staff to perform surgery. The supporting mechanism 5 includes a supporting seat 51 fixedly provided at the bottom end of the sleeve rod 1, and the sampling rod 2 passes through the supporting seat 51. The outer diameter of the supporting seat 51 is larger than the outer diameter of the sleeve rod 1. A supporting ring 52 is fixedly provided on the outer wall of the supporting seat 51, and a plurality of serpentine tubes 53 are fixedly provided on the outer wall of the supporting ring 52. The serpentine tubes 53 are metal shaped hoses, which can rotate in any direction and can provide a certain supporting force. The serpentine tubes 53 are evenly distributed along the circumferential direction of the supporting ring 52, and a suction cup 54 is fixedly provided at one end of the serpentine tube 53 away from the supporting ring 52. The suction cup 54 can be used to fix the end of the serpentine tube 53 on the operating table or the patient's skin, thereby supporting the entire device.

[0038] Principle and process of the utility model: When using the device to take samples of ovarian tissue of a patient for biopsy, it is necessary to first insert the end of the sleeve rod 1 with the oblique thorn into the patient's ovary, and then use the support mechanism 5 to support the entire device, and then hold the end of the sleeve rod 1 with one hand, and push the sampling rod 2 into the patient's body with the other hand, so that the end of the sampling rod 2 with the blade is inserted into the ovarian tissue (in the initial state, the end of the sampling rod 2 provided with the blade is located inside the sleeve rod 1), and then the piston rod 32 and the push rod 33 are used to rotate the suction cylinder 31, and the suction cylinder 31 drives the sampling rod 2 to rotate together. When the sampling rod 2 rotates, the blade at the end of the sampling rod 2 cuts off part of the ovarian tissue from the whole, and then presses the sealing block 43 on the conversion mechanism 4 opposite to the liquid feeding tube 11 by hand, inserts the rubber plug 44 into the liquid feeding tube 11 and seals it, and then pulls the piston rod 32 in the direction away from the sampling rod 2 (in the initial state, the end of the piston rod 32 provided with the piston is close to the top of the chamber 35, refer to Figure 5 , Figure 6 When the piston rod 32 is pulled out, the piston rod 32 is evacuated through the suction pipe 36 and the suction hole 37, so that suction is generated at the suction hole 37, and the ovarian tissue obtained at the blade of the sampling rod 2 is sucked into the sampling cavity 9, and then the thrust on the sampling rod 2 is canceled, and the elastic force of the spring 6 assists the sampling rod 2 to reset, so that the end of the sampling rod 2 provided with the sampling cavity 9 is returned to the inside of the sleeve rod 1, and finally the sleeve rod 1 is withdrawn from the patient's body to complete the sampling. After obtaining the ovarian tissue, a suitable container is prepared, the oblique end of the sleeve rod 1 is aligned with the container, and then the piston rod 32 is pushed in the direction close to the sampling rod 2. The piston rod 32 blows air through the chamber 35 and the suction pipe 36, so that a thrust is generated at the suction hole 37, and the ovarian tissue in the sampling cavity 9 is pushed out and falls into the container. By providing the suction mechanism 3, the grasping force of the sampling rod 2 on the ovarian tissue can be improved, and the ovarian tissue can be prevented from falling off the blade when the device is withdrawn.

[0039] During the operation, if it is necessary to inject disinfectant, antibacterial or other types of liquid medicine into the patient's ovaries, first press the sealing block 43 on the conversion mechanism 4 opposite to the exhaust pipe 36, so that the rubber plug 44 is inserted into the exhaust pipe 36 and seals it, and at the same time pull out the sealing block 43 on the conversion mechanism 4 opposite to the liquid feeding pipe 11, so that the rubber plug 44 is separated from the liquid feeding pipe 11, and then the liquid feeding pipe 11 is connected to the chamber 35, and then the end of the piston rod 32 with the piston is in a position away from the valve 10, the valve 10 is opened to introduce liquid medicine into the chamber 35, and then the piston rod 32 is pushed to a position close to the sampling rod 2, and the piston rod 32 pushes the liquid medicine in the chamber 35 into the liquid feeding pipe 11, and the liquid medicine flows to the liquid feeding hole 12 through the liquid feeding pipe 11, and finally flows into the patient's ovaries through the liquid feeding hole 12. By setting up the conversion mechanism 4, the vacuum pump 31 can achieve a dual-purpose effect. When the rubber plug 44 on the conversion mechanism 4 is used to block the liquid feeding tube 11, the piston rod 32 is pulled out, and the piston rod 32 generates attraction through the vacuum pump 31, thereby improving the gripping force of the sampling rod 2. When the rubber plug 44 on the conversion mechanism 4 is used to block the vacuum tube 36 and open the liquid feeding tube 11, the piston rod 32 is pushed, and the piston rod 32 can inject liquid medicine into the patient's body through the vacuum pump 31, thereby assisting treatment.

[0040] The specific operation of using the support mechanism 5 to support the entire device is: by bending the serpentine tube 53, the suction cup 54 is moved to the surface of the operating table or the patient's skin, and then the suction cup 54 is adsorbed on the operating table or the patient's skin. The serpentine tube 53 can still provide a certain supporting force after deformation. After the suction cup 54 is fixed, the suction cup 54 supports the entire device through the serpentine tube 53 and the support ring 52, thereby freeing the hands of medical staff and allowing them to free their hands to better perform sampling and injection of liquid medicine.

[0041] It should be noted that the utility model is an ovarian tissue biopsy device, and all its components are universal standard parts or components known to those skilled in the art, and its structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0042] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0043] Although the 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. An ovarian tissue biopsy device, comprising a sleeve rod (1), characterized in that: A sampling rod (2) is sleeved inside the sleeve rod (1), the bottom end of the sampling rod (2) extends out of the sleeve rod (1), and a suction mechanism (3) is provided between the upper and lower ends of the sampling rod (2); The suction mechanism (3) comprises a vacuum cylinder (31) arranged at the bottom end of the sampling rod (2), a chamber (35) is provided inside the vacuum cylinder (31) along its length direction, a piston rod (32) is slidably provided inside the vacuum cylinder (31), the bottom end of the piston rod (32) extends to the outside of the vacuum cylinder (31) and is fixedly provided with a push rod (33), a limiting rod (34) is fixedly provided on a side of the push rod (33) close to the vacuum cylinder (31), and the end of the limiting rod (34) away from the push rod (33) is inserted into the inner wall of the vacuum cylinder (31), a sampling cavity (9) is provided in the top end of the sampling rod (2), and a vacuum hole (37) is provided at the bottom end of the sampling cavity (9).

2. An ovarian tissue biopsy device according to claim 1, characterized in that: An air extraction pipe (36) is provided through the bottom end of the air extraction hole (37), and the bottom end of the air extraction pipe (36) extends to the bottom end of the sampling rod (2). A filter cotton (38) is fixedly provided at the bottom end of the sampling cavity (9).

3. An ovarian tissue biopsy device according to claim 1, characterized in that: A conversion mechanism (4) is arranged at the bottom of the sampling rod (2) above the vacuum cylinder (31), and the conversion mechanism (4) comprises a conversion cylinder (41) fixedly arranged on the outer wall of the sampling rod (2), the bottom end of the conversion cylinder (41) is fixedly connected to the top end of the vacuum cylinder (31), rubber sleeves (42) are fixedly arranged on both sides of the conversion cylinder (41), a sealing block (43) is fixedly connected to one side of the rubber sleeve (42), and one end of the sealing block (43) passes through the rubber sleeve (42) and is fixedly arranged with a rubber plug (44).

4. An ovarian tissue biopsy device according to claim 1, characterized in that: A plurality of liquid supply holes (12) are provided at the top of the sampling rod (2), and the liquid supply holes (12) are distributed along the circumferential direction of the sampling rod (2). A liquid supply tube (11) is provided between the bottom end of the sampling rod (2) and the liquid supply holes (12), and the bottom ends of the liquid supply tube (11) and the air extraction tube (36) are respectively opposite to two rubber stoppers (44).

5. An ovarian tissue biopsy device according to claim 1, characterized in that: A valve (10) is provided on the top outer wall of the vacuum cylinder (31), and the valve (10) is communicated with the chamber (35).

6. An ovarian tissue biopsy device according to claim 1, characterized in that: A limiting groove (7) is provided at the bottom of the sleeve rod (1), the sampling rod (2) passes through the limiting groove (7), and a stopper (8) is fixedly arranged on the outer wall of the sampling rod (2), and a spring (6) is pressed between the stopper (8) and the top end of the limiting groove (7).

7. An ovarian tissue biopsy device according to claim 1, characterized in that: A support mechanism (5) is provided at the bottom end of the sleeve rod (1), and the support mechanism (5) comprises a support seat (51) fixedly provided at the bottom end of the sleeve rod (1), the sampling rod (2) passes through the support seat (51), a support ring (52) is fixedly provided on the outer wall of the support seat (51), a plurality of serpentine tubes (53) are fixedly provided on the outer wall of the support ring (52), the serpentine tubes (53) are evenly distributed along the circumferential direction of the support ring (52), and a suction cup (54) is fixedly provided at one end of the serpentine tube (53) away from the support ring (52).

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