Bone filling pouch

Abstract

The present application belongs to the technical field of medical textile material forming, and relates to a bone filling bag, which comprises a bag body. The bag body is integrally formed by a yarn warp knitting process to obtain a bag-shaped bag with a closed end. The surface of the bag body is distributed with through holes. The yarn is a multifilament. The through holes are not naturally formed by the warp knitting process, but are formed by punching after the warp knitting process. The present application optimizes the bag fabric structure, can inhibit yarn slippage, guarantee the structural stability of the bag under high pressure, and can customize the through hole structure as needed to realize controllable targeted dispersion of bone cement, adapt to various complex clinical scenarios, and has a simple preparation process, effectively solving the technical problems of poor structural stability of the existing bone filling bag, uncontrollable dispersion of bone cement, and complicated preparation.

Description

Technical Field

[0001] This invention belongs to the field of medical textile material molding technology, and relates to a bone-filling pouch. Background Technology

[0002] Bone-filled bags are common medical devices used to treat vertebral compression fractures caused by osteoporosis. They are woven into a single piece using textile technology, and their main function is to encapsulate and restrain the unintended leakage of viscous bone-filling material into the body.

[0003] Currently, most common bone-filled bags are made of monofilament yarn through a machine weaving process, with a warp and weft density of 500-600 threads / 10cm. The perforations are naturally formed during the weaving process, which presents the following problems:

[0004] (1) During the clinical surgical injection of bone cement and other bone filling materials, as the injection volume increases, the internal pressure of the bone filling bag gradually increases, and the circumferential tension acting on the inner wall of the bone filling bag also increases. When this tension exceeds the frictional force at the interlacing point of the warp and weft yarns in the fabric, the monofilaments slip relative to each other at the interlacing point, causing a decrease in the geometric stability of the fabric, irregular deformation of the pore morphology, and uncontrollable bone cement exudation; at the same time, stress is concentrated in the slipped area, further aggravating local deformation, which may eventually lead to the rupture of the bone filling bag.

[0005] (2) The fixed location and number of through holes cannot address complex clinical scenarios such as different types of vertebral fractures, bone defect morphologies, bone cement injection pressures, and intraoperative diffusion requirements. In clinical practice, vertebral compression fractures present in a variety of forms, including wedge-shaped fractures, biconcave fractures, and burst fractures. The bone defect areas of different patients vary significantly in location, size, and shape. The fixed location and number of through holes mean that bone cement can only seep out from the pre-set specific areas, while the actual areas where bone cement needs to be diffused and anchored may not be in these locations. The surgeon cannot adjust and control the directional and targeted diffusion of bone cement according to the specific condition of the vertebra.

[0006] Patent CN216148180U discloses a multi-layered, waist-tight mesh structure bone-filling pouch. The pore size of each layer of the mesh structure decreases sequentially from the inner to the outer layer, aiming to control the flow and dispersion of bone cement through a gradient pore size design, thereby reducing complications such as bone cement leakage. However, this approach relies on a multi-layered structure to achieve the gradient change in pore size, which not only increases the complexity of the fabrication process but also leads to an increase in the overall thickness of the bone-filling pouch, potentially affecting its flexibility and ease of manipulation within the vertebral body.

[0007] Therefore, it is necessary to propose a bone-filled pouch with a simpler preparation process that can solve the above problems. Summary of the Invention

[0008] The purpose of this invention is to solve the problems existing in the prior art and to provide a bone-filling pouch.

[0009] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0010] A bone-filled sac includes a sac body made of yarn through a weaving process. The surface of the sac body has through holes. The yarn is multifilament. The through holes are not formed naturally through the weaving process, but are formed by punching holes after the weaving process.

[0011] This invention uses a woven process to prepare the bag, in which the warp and weft yarns are tightly interwoven vertically and in a moderately compressed and overlapping state. The total fabric coverage coefficient is close to 100%, and the friction between the yarns is significantly improved. This fundamentally inhibits slippage at the structural level and ensures the structural stability and mechanical reliability of the bag under the pressure of bone cement injection.

[0012] While ensuring the bag itself does not leak, the bone cement can be controlled to seep out through the holes in specific areas by customizing the location, diameter, shape, spacing and number of holes. This allows it to contact and anchor with the surrounding trabeculae, effectively addressing various complex scenarios in clinical surgery.

[0013] As a preferred technical solution:

[0014] As described above, the yarn specification is 20-60D / 24-48F, and the material is either non-absorbable or absorbable. The non-absorbable material is selected from polyester fiber (PET) or ultra-high molecular weight polyethylene (UHMWPE), and the absorbable material is selected from polylactic acid (PLA), polyglycolic acid (PGA), polyglycolic acid (PLGA), polycaprolactone (PCL), or polydioxanone (PPDO), etc.

[0015] During machine weaving, the reed number is 110-200 teeth / 10cm, and the number of warp yarns inserted per tooth is 8-16.

[0016] The sac body is composed of two layers of tissue, with a warp density of 720-960 threads / 10cm for both the inner and outer layers, and a weft density of 700-1000 threads / 10cm for both the inner and outer layers.

[0017] By controlling the yarn specifications, reed grade, number of warp yarns per reed tooth, and warp and weft density, through holes can be avoided naturally during weaving.

[0018] As described above, the bone-filled pouch is perforated using either laser perforation or ultrasonic perforation.

[0019] When laser drilling is used, a high-power-density laser beam is focused on the surface of the bag body. The material absorbs light energy and converts it into heat energy in a very short time. The local temperature rises sharply to the melting point or even the vaporization temperature, causing the fiber to melt and vaporize instantly. At the same time, the vapor pressure generated by vaporization increases rapidly, forming a shock wave that discharges the molten material from the hole, ultimately forming a hole with smooth edges.

[0020] When using ultrasonic drilling, the bag body is placed between the ultrasonic welding head and the anvil roller. The high-frequency vibration softens the bag body locally, while the protrusions on the anvil roller pierce into the bag body to form a through hole.

[0021] Both of these punching methods can naturally form a smooth seal at the edge of the hole, effectively preventing the bag body from fraying and the fibers from coming apart.

[0022] As described above, the bone-filled pouch is perforated mechanically. A serrated stamping die can be customized according to the designed hole shape and diameter. The pouch body is placed between the punch and the bottom die. The punch is driven by the stamping mechanism to punch through holes on the surface of the pouch body. During the perforation process, the punch is inserted into the area between the four interlacing points in the tissue circulation of the pouch body and squeezes the yarn outward to form through holes. Since the yarn does not break during the perforation process, but only displaces, the mechanical properties of the pouch body hardly change after perforation.

[0023] In the bone-filled pouch described above, before drilling, the target insertion position of the punch is marked on the pouch body using a microscope.

[0024] As described above, the bone-filled pouch has a through hole that is circular, square, or elliptical; the diameter of the circular through hole is 0.1-1.0 mm, the side length of the square through hole is 0.1-1.0 mm, the major axis length of the elliptical through hole is 0.1-1.0 mm, and the minor axis length of the elliptical through hole is 0.05-0.8 mm.

[0025] As described above, the total area of ​​the through holes in a bone-filled pouch is 25%-60% of the area of ​​the pouch body.

[0026] As described above, one end of the bone-filling bag body is a closed end, where the upper and lower layers of yarn are interwoven to form an overall closed structure, and the other end is an open end, which facilitates the injection of bone cement during the operation.

[0027] The joining methods are inner warp joining method, outer warp joining method or combined joining method, and the basic structure is plain weave or 2 / 2 square plain weave;

[0028] The bone-filled pouch also includes a traction suture, which closes the opening of the pouch body by wrapping, knotting, or suturing.

[0029] By directly preparing a bag body with one end closed, the step of separately closing the opening of the bag body during surgery can be eliminated, simplifying the surgical procedure, shortening the preoperative preparation time, and improving the ease of use of the product and the safety of the surgery.

[0030] As described above, the bone-filled bag body is a cylindrical tube closed at one end, with an inner diameter of 10-30 mm and a length of 20-50 mm. The through holes are distributed in multiple rows, with the through holes in the same row distributed around the circumference of the bag body. The spacing between two adjacent holes in the same row and the spacing between two adjacent rows are both 0.1-1.0 mm.

[0031] As described above, the bone-filled pouch has pores arranged uniformly or non-uniformly.

[0032] The bone-filled bag as described in any of the preceding claims has a circumferential tensile strength of 4.12-9.48 N / mm and a probe breaking strength of 90.4-112.97 N.

[0033] Beneficial effects:

[0034] (1) The present invention uses multifilaments to prepare the bag body through a weaving process, so that the warp and weft yarns are tightly interwoven vertically, which increases the friction between the yarns and can fundamentally inhibit yarn slippage. This effectively avoids the problems of bag structure deformation and abnormal pore morphology under bone cement injection pressure, ensuring the structural stability and mechanical reliability of the bag, and preventing bag rupture and uncontrollable bone cement leakage.

[0035] (2) This invention abandons the method of naturally forming through holes in the weaving process and uses the method of punching holes after weaving to prepare through holes. The parameters related to the through holes can be customized in a personalized manner, which can realize the controllable exudation of bone cement in a specific area and the anchoring of bone trabeculae. It can be adapted to complex clinical scenarios such as different types of vertebral fractures, bone defect morphology and intraoperative diffusion requirements, and realize the directional and targeted diffusion of bone cement.

[0036] (3) The present invention does not require the setting of a multi-layer mesh structure, the preparation process is simple, and it avoids the problems of increased thickness, decreased flexibility and inconvenience of operation during surgery caused by multi-layer structures, effectively ensuring the flexibility of the bag and the convenience of clinical operation. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the structure of the bag body after the holes have been punched in Example 1;

[0038] Figure 2 A schematic diagram of the structure of a finished bone-filled sac bag after it has been filled with bone cement and sealed at the ends;

[0039] Figures 1-2 In the middle, 1-bag body, 2-traction line, 3-through hole;

[0040] Figure 3 This is a side view of the bag body after the holes have been punched in Example 1 (only half of the symmetrical structure is shown; the other half is mirror-symmetrical to this figure).

[0041] Figure 4 This is a side view of the bag body after the holes have been punched in Example 2 (only half of the symmetrical structure is shown; the other half is mirror-symmetrical to this figure).

[0042] Figure 5 This is a side view of the bag body after the holes have been punched in Example 3 (only half of the symmetrical structure is shown; the other half is mirror-symmetrical to this figure).

[0043] Figure 6 This is a side view of the bag body after the holes have been punched in Example 4 (only half of the symmetrical structure is shown; the other half is mirror-symmetrical to this figure).

[0044] Figures 3-6 In this context, the distance unit is mm. Detailed Implementation

[0045] The present invention will be further described below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.

[0046] The following are the test methods for the relevant performance indicators in each embodiment:

[0047] Circumferential tensile strength: A medical textile strength tester (YG(B)026G-500, Wenzhou Darong Textile Instrument Co., Ltd.) was used to test the circumferential tensile strength according to the YY / T 0500-2021 standard. The specific procedure was as follows: a semi-circular pad was placed in the sample and the sample was kept in its natural state. The sample was stretched upwards at a constant speed of 200 mm / min until it broke. The maximum circumferential breaking strength at the time of fracture was recorded. The circumferential tensile strength was obtained according to the following formula:

[0048] F ;

[0049] In the formula, T is the circumferential fracture strength in N; L is the specimen length in mm; and F is the circumferential fracture strength in N / mm.

[0050] Probe breaking strength: The probe breaking strength was tested using a medical textile tensile tester (YG(B)026G-500, Wenzhou Darong Textile Instrument Co., Ltd.) in accordance with the YY / T 0500-2021 standard. The sample size was 30mm×30mm. The clamp was circular with a central hole diameter of 11.3mm. The probe diameter was 9.5mm. The probe was moved downward at a uniform speed of 200mm / min until it punctured the sample.

[0051] The parameter ranges for through-hole size, hole spacing, etc., described in this invention are effective implementation ranges derived from a large number of preliminary variable screening experiments. The following embodiments only specifically adjust parameters such as yarn specifications, material type, perforation method, and through-hole arrangement; this design is not intended to limit the scope of protection of this invention. Those skilled in the art can adjust any parameter based on the parameter ranges defined in this invention to achieve similar effects, and these adjustments do not exceed the scope of protection defined by the claims of this invention.

[0052] Example 1

[0053] A method for preparing a bone-filled pouch, comprising the following specific steps:

[0054] (1) Preparation of materials;

[0055] Yarn: Multifilament, specification 60D / 24F, material PET;

[0056] traction line;

[0057] (2) Preparation of the capsule body;

[0058] The bag body is made of yarn by machine weaving; during machine weaving, the reed is 180 teeth / 10cm, and 8 warp yarns are inserted into each tooth;

[0059] The resulting pouch body is a cylindrical tube closed at one end. Its fabric structure is a double-layered weave. The inner layer has a warp density of 720 threads / 10cm and a weft density of 700 threads / 10cm. The outer layer has the same warp density and weft density as the inner layer. One end of the pouch body is closed, where the upper and lower layers of yarns are interwoven to form a closed structure. The other end is open. The weaving method is the inner warp weaving method, and the basic weave is a plain weave.

[0060] (3) Drill holes in the pouch body;

[0061] Before punching, the target insertion position of the punch is marked on the bag body with the help of a microscope; the punching is done by mechanical punching. During the punching process, the punch is inserted into the area between the four interlacing points in the tissue circulation of the bag body, and the yarn is squeezed outward to form a through hole.

[0062] After drilling, the side view of the pouch body unfolded is as follows. Figure 3 As shown; all through holes are circular in shape and the same size; the through holes are distributed in 38 rows, and the through holes in the same row are distributed around the circumference of the bag body. There are 52 through holes in each row. The distance between two adjacent holes in the same row is equal, and the distance between holes in two adjacent rows is equal.

[0063] (4) Preparation of bone-filled pouches;

[0064] The bone-filled bag is obtained by sealing the opening of the bag body with a traction thread by wrapping, knotting or sewing.

[0065] like Figure 1 As shown, the final bone-filled bag consists of a bag body 1 and a traction wire 2. The surface of the bag body 1 has through holes 3.

[0066] The circumferential tensile strength of the bone-filled capsule is 5.57 N / mm, and the breaking strength of the probe is 112.97 N.

[0067] Example 2

[0068] A method for preparing a bone-filled pouch, comprising the following specific steps:

[0069] (1) Preparation of materials;

[0070] Yarn: Multifilament, specification 20D / 48F, material UHMWPE;

[0071] traction line;

[0072] (2) Preparation of the capsule body;

[0073] The bag body is made of yarn by machine weaving; during the machine weaving process, the reed is 120 teeth / 10cm, and 16 warp yarns are inserted into each tooth;

[0074] The resulting pouch body is a cylindrical tube closed at one end. Its fabric structure is a double-layered weave, with the inner layer having a warp density of 960 threads / 10cm and a weft density of 900 threads / 10cm. The outer layer has the same warp density and weft density as the inner layer. One end of the pouch body is closed, where the upper and lower layers of yarns interweave to form a closed structure. The other end is open. The weaving method is the front warp weaving method, and the basic weave is a 2 / 2 plain weave.

[0075] (3) Drill holes in the pouch body;

[0076] Before punching, the target insertion position of the punch is marked on the bag body with the help of a microscope; the punching is done by mechanical punching. During the punching process, the punch is inserted into the area between the four interlacing points in the tissue circulation of the bag body, and the yarn is squeezed outward to form a through hole.

[0077] After drilling, the side view of the pouch body unfolded is as follows. Figure 4 As shown; all through holes are circular in shape; the through holes are distributed in 20 rows, with the through holes in the same row distributed around the circumference of the bag body, and each row has 52 through holes. The spacing between two adjacent holes in the same row is equal, and the spacing between holes in two adjacent rows is equal; of the 52 through holes in each row, half of the through holes have a diameter of 1.0 mm, and the other half have a diameter of 0.5 mm, with the 1.0 mm diameter through holes and the 0.5 mm diameter through holes alternating.

[0078] (4) Preparation of bone-filled pouches;

[0079] The bone-filled bag is obtained by sealing the opening of the bag body with a traction thread by wrapping, knotting or sewing.

[0080] The final bone-filled sac had a circumferential tensile strength of 6.8 N / mm and a probe breaking strength of 103.68 N.

[0081] Example 3

[0082] A method for preparing a bone-filled pouch, comprising the following specific steps:

[0083] (1) Preparation of materials;

[0084] Yarn: Multifilament, specification 40D / 48F, material PLA;

[0085] traction line;

[0086] (2) Preparation of the capsule body;

[0087] The bag body is made of yarn by machine weaving; during the machine weaving process, the reed number is 110 teeth / 10cm, and 16 warp yarns are inserted into each reed tooth;

[0088] The resulting pouch body is a cylindrical tube closed at one end. Its fabric structure is a double-layered weave. The inner layer has a warp density of 880 threads / 10cm and a weft density of 1000 threads / 10cm. The outer layer has the same warp density and weft density as the inner layer. One end of the pouch body is a closed end, which interweaves the upper and lower layers of yarn to form an overall closed structure. The other end is an open end. The weaving method is the inner warp weaving method, and the basic weave is a plain weave.

[0089] (3) Drill holes in the pouch body;

[0090] Before punching, the target insertion position of the punch is marked on the bag body with the help of a microscope; the punching is done by mechanical punching. During the punching process, the punch is inserted into the area between the four interlacing points in the tissue circulation of the bag body, and the yarn is squeezed outward to form a through hole.

[0091] After drilling, the side view of the pouch body unfolded is as follows. Figure 5 As shown; all through holes are elliptical and the same in shape and size; the through holes are distributed in 52 rows, and the through holes in the same row are distributed around the circumference of the bag body. There are 68 through holes in each row. The distance between two adjacent holes in the same row is equal, and the distance between holes in two adjacent rows is equal.

[0092] (4) Preparation of bone-filled pouches;

[0093] The bone-filled bag is obtained by sealing the opening of the bag body with a traction thread by wrapping, knotting or sewing.

[0094] The final bone-filled capsule had a circumferential tensile strength of 4.12 N / mm and a probe breaking strength of 99.48 N.

[0095] Example 4

[0096] A method for preparing a bone-filled pouch, comprising the following specific steps:

[0097] (1) Preparation of materials;

[0098] Yarn: Multifilament, specification 40D / 32F, material is PCL;

[0099] traction line;

[0100] (2) Preparation of the capsule body;

[0101] The bag body is made of yarn by machine weaving; during the machine weaving process, the reed is 200 teeth / 10cm, and 8 warp yarns are inserted into each tooth;

[0102] The resulting pouch body is a cylindrical tube closed at one end. Its fabric structure is a double-layered weave, with the inner layer having a warp density of 800 threads / 10cm and a weft density of 900 threads / 10cm. The outer layer has the same warp density and weft density as the inner layer. One end of the pouch body is closed, where the upper and lower layers of yarns are interwoven to form a closed structure. The other end is open. The weaving method is the front warp weaving method, and the basic weave is a 2 / 2 plain weave.

[0103] (3) Drill holes in the pouch body;

[0104] Before punching, the target insertion position of the punch is marked on the bag body with the help of a microscope; the punching is done by mechanical punching. During the punching process, the punch is inserted into the area between the four interlacing points in the tissue circulation of the bag body, and the yarn is squeezed outward to form a through hole.

[0105] After drilling, the side view of the pouch body unfolded is as follows. Figure 6 As shown ( Figure 6 In the middle, the spacing between adjacent holes in the 10 holes in the same row is equal, and the spacing between adjacent holes in the 13 holes in the same column is equal; all holes are square and the same size; the holes are distributed in 17 rows, and the holes in the same row are distributed around the circumference of the bag body, with 28 holes in each row.

[0106] (4) Preparation of bone-filled pouches;

[0107] The bone-filled bag is obtained by sealing the opening of the bag body with a traction thread by wrapping, knotting or sewing.

[0108] The final bone-filled capsule had a circumferential tensile strength of 9.48 N / mm and a probe breaking strength of 90.4 N.

[0109] Example 5

[0110] A method for preparing a bone-filled pouch differs from Example 1 only in that the perforation is performed using laser perforation.

[0111] The final bone-filled sac had a circumferential tensile strength of 5 N / mm and a probe breaking strength of 100.54 N.

[0112] Compared to Example 1, Example 5 shows a decrease in the circumferential tensile strength and probe bursting strength of the bone-filled pouch. This is because machining does not damage the structure of the yarns in the fabric; it only causes the yarns to shift towards the periphery of the hole through die extrusion, forming a through hole while maintaining the continuity of the yarns themselves. Laser drilling, on the other hand, uses a high-power-density laser beam to break the yarns. The fracture surface melts and bonds together due to localized thermal effects. Although this localized fusion strengthens the anti-unraveling strength of the hole edges, making them less prone to unraveling, it essentially comes at the cost of structural breakage of the yarns. The axial continuity of the yarns around the hole is severed, reducing the load-bearing capacity of a single yarn.

[0113] Example 6

[0114] A method for preparing a bone-filled pouch differs from Example 1 only in that the perforation is performed using ultrasonic perforation.

[0115] The final bone-filled sac had a circumferential tensile strength of 5.07 N / mm and a probe breaking strength of 101.73 N.

[0116] Compared with Example 1, Example 6 also showed a decrease in the circumferential tensile strength and probe breaking strength of the bone-filled bag. This is because ultrasonic drilling uses high-frequency vibration to cause the yarn to break under the action of the mold. The surface melts and bonds together at the fracture due to local thermal effect, which also destroys the continuity of the yarn. Therefore, the mechanical properties are reduced compared with mechanical drilling that does not destroy the yarn structure.

[0117] The bone-filled pouches of the above embodiments can be used for spinal repair. The specific procedure is as follows: a temporary closure is made at the open end of the pouch body using a loose suture. Bone cement is then filled inwards from this end. After filling, the traction suture at this end is tightened to achieve end closure. During filling, bone cement only leaks out from the perforated location and not from other locations. Taking the bone-filled pouch of Embodiment 1 as an example, the finished product after closure is as follows: Figure 2 As shown.

Claims

1. A bone-filled pouch, comprising a pouch body, the pouch body being manufactured from yarn using a weaving process, and having through holes distributed on the surface of the pouch body, characterized in that, The yarn is multifilament, and the through holes are not formed naturally during the weaving process, but are formed by punching holes after the weaving process.

2. The bone-filling pouch according to claim 1, characterized in that, The yarn specifications are 20-60D / 24-48F; During machine weaving, the reed number is 110-200 teeth / 10cm, and the number of warp yarns inserted per tooth is 8-16. The sac body is composed of two layers of tissue, with a warp density of 720-960 threads / 10cm for both the inner and outer layers, and a weft density of 700-1000 threads / 10cm for both the inner and outer layers.

3. The bone-filling pouch according to claim 1, characterized in that, The drilling process uses either laser drilling or ultrasonic drilling.

4. A bone-filling pouch according to claim 1, characterized in that, The punching process uses a mechanical punching method. During the punching process, the punch is inserted into the area between the four interlacing points in the tissue circulation of the bag body, and the yarn is squeezed outward to form a through hole.

5. A bone-filling pouch according to claim 4, characterized in that, Before drilling, the target insertion position of the punch is marked on the body of the bag using a microscope.

6. A bone-filling pouch according to claim 1, characterized in that, The through hole can be round, square, or elliptical; the diameter of the round through hole is 0.1-1.0 mm, the side length of the square through hole is 0.1-1.0 mm, the major axis length of the elliptical through hole is 0.1-1.0 mm, and the minor axis length of the elliptical through hole is 0.05-0.8 mm.

7. A bone-filling pouch according to claim 1, characterized in that, The total area of ​​the through holes is 25%-60% of the area of ​​the bag body.

8. A bone-filling pouch according to claim 1, characterized in that, One end of the bag body is a closed end, where the upper and lower layers of yarn are interwoven to form an overall closed structure, and the other end is an open end; The joining methods are inner warp joining method, outer warp joining method or combined joining method, and the basic structure is plain weave or 2 / 2 square plain weave; The bone-filled pouch also includes a traction suture, which closes the opening of the pouch body by wrapping, knotting, or suturing.

9. A bone-filling pouch according to claim 8, characterized in that, The capsule body is a cylindrical tube closed at one end, with an inner diameter of 10-30 mm and a length of 20-50 mm. The through holes are distributed in multiple rows. The through holes in the same row are distributed around the circumference of the capsule body. The spacing between two adjacent holes in the same row and the spacing between two adjacent rows are both 0.1-1.0 mm.

10. A bone-filling pouch according to claim 9, characterized in that, The through holes are arranged uniformly or non-uniformly.

11. A bone-filling pouch according to any one of claims 1 to 10, characterized in that, The circumferential tensile strength of the bone-filled capsule is 4.12-9.48 N / mm, and the breaking strength of the probe is 90.4-112.97 N.

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